kernel.git
2 years agoigb: Allocate MSI-X vector when testing
Akihiko Odaki [Fri, 25 Nov 2022 13:30:31 +0000 (22:30 +0900)]
igb: Allocate MSI-X vector when testing

Without this change, the interrupt test fail with MSI-X environment:

$ sudo ethtool -t enp0s2 offline
[   43.921783] igb 0000:00:02.0: offline testing starting
[   44.855824] igb 0000:00:02.0 enp0s2: igb: enp0s2 NIC Link is Down
[   44.961249] igb 0000:00:02.0 enp0s2: igb: enp0s2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[   51.272202] igb 0000:00:02.0: testing shared interrupt
[   56.996975] igb 0000:00:02.0 enp0s2: igb: enp0s2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
The test result is FAIL
The test extra info:
Register test  (offline)  0
Eeprom test    (offline)  0
Interrupt test (offline)  4
Loopback test  (offline)  0
Link test   (on/offline)  0

Here, "4" means an expected interrupt was not delivered.

To fix this, route IRQs correctly to the first MSI-X vector by setting
IVAR_MISC. Also, set bit 0 of EIMS so that the vector will not be
masked. The interrupt test now runs properly with this change:

$ sudo ethtool -t enp0s2 offline
[   42.762985] igb 0000:00:02.0: offline testing starting
[   50.141967] igb 0000:00:02.0: testing shared interrupt
[   56.163957] igb 0000:00:02.0 enp0s2: igb: enp0s2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
The test result is PASS
The test extra info:
Register test  (offline)  0
Eeprom test    (offline)  0
Interrupt test (offline)  0
Loopback test  (offline)  0
Link test   (on/offline)  0

Fixes: 4eefa8f01314 ("igb: add single vector msi-x testing to interrupt test")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoe1000e: Fix TX dispatch condition
Akihiko Odaki [Fri, 28 Oct 2022 13:00:00 +0000 (22:00 +0900)]
e1000e: Fix TX dispatch condition

e1000_xmit_frame is expected to stop the queue and dispatch frames to
hardware if there is not sufficient space for the next frame in the
buffer, but sometimes it failed to do so because the estimated maximum
size of frame was wrong. As the consequence, the later invocation of
e1000_xmit_frame failed with NETDEV_TX_BUSY, and the frame in the buffer
remained forever, resulting in a watchdog failure.

This change fixes the estimated size by making it match with the
condition for NETDEV_TX_BUSY. Apparently, the old estimation failed to
account for the following lines which determines the space requirement
for not causing NETDEV_TX_BUSY:
    ```
     /* reserve a descriptor for the offload context */
     if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
     count++;
     count++;

     count += DIV_ROUND_UP(len, adapter->tx_fifo_limit);
    ```

This issue was found when running http-stress02 test included in Linux
Test Project 20220930 on QEMU with the following commandline:
```
qemu-system-x86_64 -M q35,accel=kvm -m 8G -smp 8
-drive if=virtio,format=raw,file=root.img,file.locking=on
-device e1000e,netdev=netdev
-netdev tap,script=ifup,downscript=no,id=netdev
```

Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver (currently for ICH9 devices only)")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoMerge tag 'net-6.1-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Tue, 29 Nov 2022 17:52:10 +0000 (09:52 -0800)]
Merge tag 'net-6.1-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf, can and wifi.

  Current release - new code bugs:

   - eth: mlx5e:
      - use kvfree() in mlx5e_accel_fs_tcp_create()
      - MACsec, fix RX data path 16 RX security channel limit
      - MACsec, fix memory leak when MACsec device is deleted
      - MACsec, fix update Rx secure channel active field
      - MACsec, fix add Rx security association (SA) rule memory leak

  Previous releases - regressions:

   - wifi: cfg80211: don't allow multi-BSSID in S1G

   - stmmac: set MAC's flow control register to reflect current settings

   - eth: mlx5:
      - E-switch, fix duplicate lag creation
      - fix use-after-free when reverting termination table

  Previous releases - always broken:

   - ipv4: fix route deletion when nexthop info is not specified

   - bpf: fix a local storage BPF map bug where the value's spin lock
     field can get initialized incorrectly

   - tipc: re-fetch skb cb after tipc_msg_validate

   - wifi: wilc1000: fix Information Element parsing

   - packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE

   - sctp: fix memory leak in sctp_stream_outq_migrate()

   - can: can327: fix potential skb leak when netdev is down

   - can: add number of missing netdev freeing on error paths

   - aquantia: do not purge addresses when setting the number of rings

   - wwan: iosm:
      - fix incorrect skb length leading to truncated packet
      - fix crash in peek throughput test due to skb UAF"

* tag 'net-6.1-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
  net: ethernet: renesas: ravb: Fix promiscuous mode after system resumed
  MAINTAINERS: Update maintainer list for chelsio drivers
  ionic: update MAINTAINERS entry
  sctp: fix memory leak in sctp_stream_outq_migrate()
  packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE
  net/mlx5: Lag, Fix for loop when checking lag
  Revert "net/mlx5e: MACsec, remove replay window size limitation in offload path"
  net: marvell: prestera: Fix a NULL vs IS_ERR() check in some functions
  net: tun: Fix use-after-free in tun_detach()
  net: mdiobus: fix unbalanced node reference count
  net: hsr: Fix potential use-after-free
  tipc: re-fetch skb cb after tipc_msg_validate
  mptcp: fix sleep in atomic at close time
  mptcp: don't orphan ssk in mptcp_close()
  dsa: lan9303: Correct stat name
  ipv4: Fix route deletion when nexthop info is not specified
  net: wwan: iosm: fix incorrect skb length
  net: wwan: iosm: fix crash in peek throughput test
  net: wwan: iosm: fix dma_alloc_coherent incompatible pointer type
  net: wwan: iosm: fix kernel test robot reported error
  ...

2 years agonet: ethernet: renesas: ravb: Fix promiscuous mode after system resumed
Yoshihiro Shimoda [Mon, 28 Nov 2022 06:56:04 +0000 (15:56 +0900)]
net: ethernet: renesas: ravb: Fix promiscuous mode after system resumed

After system resumed on some environment board, the promiscuous mode
is disabled because the SoC turned off. So, call ravb_set_rx_mode() in
the ravb_resume() to fix the issue.

Reported-by: Tho Vu <tho.vu.wh@renesas.com>
Fixes: 0184165b2f42 ("ravb: add sleep PM suspend/resume support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20221128065604.1864391-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMAINTAINERS: Update maintainer list for chelsio drivers
Ayush Sawal [Mon, 28 Nov 2022 23:13:48 +0000 (04:43 +0530)]
MAINTAINERS: Update maintainer list for chelsio drivers

This updates the maintainers for chelsio inline crypto drivers and
chelsio crypto drivers.

Signed-off-by: Ayush Sawal <ayush.sawal@chelsio.com>
Link: https://lore.kernel.org/r/20221128231348.8225-1-ayush.sawal@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoionic: update MAINTAINERS entry
Shannon Nelson [Tue, 29 Nov 2022 01:17:34 +0000 (17:17 -0800)]
ionic: update MAINTAINERS entry

Now that Pensando is a part of AMD we need to update
a couple of addresses.  We're keeping the mailing list
address for the moment, but that will likely change in
the near future.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Link: https://lore.kernel.org/r/20221129011734.20849-1-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agosctp: fix memory leak in sctp_stream_outq_migrate()
Zhengchao Shao [Sat, 26 Nov 2022 03:17:20 +0000 (11:17 +0800)]
sctp: fix memory leak in sctp_stream_outq_migrate()

When sctp_stream_outq_migrate() is called to release stream out resources,
the memory pointed to by prio_head in stream out is not released.

The memory leak information is as follows:
 unreferenced object 0xffff88801fe79f80 (size 64):
   comm "sctp_repo", pid 7957, jiffies 4294951704 (age 36.480s)
   hex dump (first 32 bytes):
     80 9f e7 1f 80 88 ff ff 80 9f e7 1f 80 88 ff ff  ................
     90 9f e7 1f 80 88 ff ff 90 9f e7 1f 80 88 ff ff  ................
   backtrace:
     [<ffffffff81b215c6>] kmalloc_trace+0x26/0x60
     [<ffffffff88ae517c>] sctp_sched_prio_set+0x4cc/0x770
     [<ffffffff88ad64f2>] sctp_stream_init_ext+0xd2/0x1b0
     [<ffffffff88aa2604>] sctp_sendmsg_to_asoc+0x1614/0x1a30
     [<ffffffff88ab7ff1>] sctp_sendmsg+0xda1/0x1ef0
     [<ffffffff87f765ed>] inet_sendmsg+0x9d/0xe0
     [<ffffffff8754b5b3>] sock_sendmsg+0xd3/0x120
     [<ffffffff8755446a>] __sys_sendto+0x23a/0x340
     [<ffffffff87554651>] __x64_sys_sendto+0xe1/0x1b0
     [<ffffffff89978b49>] do_syscall_64+0x39/0xb0
     [<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Link: https://syzkaller.appspot.com/bug?exrid=29c402e56c4760763cc0
Fixes: 637784ade221 ("sctp: introduce priority based stream scheduler")
Reported-by: syzbot+29c402e56c4760763cc0@syzkaller.appspotmail.com
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20221126031720.378562-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agopacket: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE
Willem de Bruijn [Mon, 28 Nov 2022 16:18:12 +0000 (11:18 -0500)]
packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE

CHECKSUM_COMPLETE signals that skb->csum stores the sum over the
entire packet. It does not imply that an embedded l4 checksum
field has been validated.

Fixes: 682f048bd494 ("af_packet: pass checksum validation status to the user")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20221128161812.640098-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet/mlx5: Lag, Fix for loop when checking lag
Chris Mi [Tue, 29 Nov 2022 09:30:06 +0000 (01:30 -0800)]
net/mlx5: Lag, Fix for loop when checking lag

The cited commit adds a for loop to check if each port supports lag
or not. But dev is not initialized correctly. Fix it by initializing
dev for each iteration.

Fixes: e87c6a832f88 ("net/mlx5: E-switch, Fix duplicate lag creation")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reported-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20221129093006.378840-2-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoRevert "net/mlx5e: MACsec, remove replay window size limitation in offload path"
Saeed Mahameed [Tue, 29 Nov 2022 09:30:05 +0000 (01:30 -0800)]
Revert "net/mlx5e: MACsec, remove replay window size limitation in offload path"

This reverts commit c0071be0e16c461680d87b763ba1ee5e46548fde.

The cited commit removed the validity checks which initialized the
window_sz and never removed the use of the now uninitialized variable,
so now we are left with wrong value in the window size and the following
clang warning: [-Wuninitialized]
drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c:232:45:
       warning: variable 'window_sz' is uninitialized when used here
       MLX5_SET(macsec_aso, aso_ctx, window_size, window_sz);

Revet at this time to address the clang issue due to lack of time to
test the proper solution.

Fixes: c0071be0e16c ("net/mlx5e: MACsec, remove replay window size limitation in offload path")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reported-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20221129093006.378840-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet: marvell: prestera: Fix a NULL vs IS_ERR() check in some functions
Shang XiaoJing [Fri, 25 Nov 2022 01:27:51 +0000 (09:27 +0800)]
net: marvell: prestera: Fix a NULL vs IS_ERR() check in some functions

rhashtable_lookup_fast() returns NULL when failed instead of error
pointer.

Fixes: 396b80cb5cc8 ("net: marvell: prestera: Add neighbour cache accounting")
Fixes: 0a23ae237171 ("net: marvell: prestera: Add router nexthops ABI")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221125012751.23249-1-shangxiaojing@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agonet: tun: Fix use-after-free in tun_detach()
Shigeru Yoshida [Thu, 24 Nov 2022 17:51:34 +0000 (02:51 +0900)]
net: tun: Fix use-after-free in tun_detach()

syzbot reported use-after-free in tun_detach() [1].  This causes call
trace like below:

==================================================================
BUG: KASAN: use-after-free in notifier_call_chain+0x1ee/0x200 kernel/notifier.c:75
Read of size 8 at addr ffff88807324e2a8 by task syz-executor.0/3673

CPU: 0 PID: 3673 Comm: syz-executor.0 Not tainted 6.1.0-rc5-syzkaller-00044-gcc675d22e422 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15e/0x461 mm/kasan/report.c:395
 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495
 notifier_call_chain+0x1ee/0x200 kernel/notifier.c:75
 call_netdevice_notifiers_info+0x86/0x130 net/core/dev.c:1942
 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
 call_netdevice_notifiers net/core/dev.c:1997 [inline]
 netdev_wait_allrefs_any net/core/dev.c:10237 [inline]
 netdev_run_todo+0xbc6/0x1100 net/core/dev.c:10351
 tun_detach drivers/net/tun.c:704 [inline]
 tun_chr_close+0xe4/0x190 drivers/net/tun.c:3467
 __fput+0x27c/0xa90 fs/file_table.c:320
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xb3d/0x2a30 kernel/exit.c:820
 do_group_exit+0xd4/0x2a0 kernel/exit.c:950
 get_signal+0x21b1/0x2440 kernel/signal.c:2858
 arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The cause of the issue is that sock_put() from __tun_detach() drops
last reference count for struct net, and then notifier_call_chain()
from netdev_state_change() accesses that struct net.

This patch fixes the issue by calling sock_put() from tun_detach()
after all necessary accesses for the struct net has done.

Fixes: 83c1f36f9880 ("tun: send netlink notification when the device is modified")
Reported-by: syzbot+106f9b687cd64ee70cd1@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=96eb7f1ce75ef933697f24eeab928c4a716edefe
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Link: https://lore.kernel.org/r/20221124175134.1589053-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agoafs: Fix fileserver probe RTT handling
David Howells [Mon, 28 Nov 2022 22:02:56 +0000 (22:02 +0000)]
afs: Fix fileserver probe RTT handling

The fileserver probing code attempts to work out the best fileserver to
use for a volume by retrieving the RTT calculated by AF_RXRPC for the
probe call sent to each server and comparing them.  Sometimes, however,
no RTT estimate is available and rxrpc_kernel_get_srtt() returns false,
leading good fileservers to be given an RTT of UINT_MAX and thus causing
the rotation algorithm to ignore them.

Fix afs_select_fileserver() to ignore rxrpc_kernel_get_srtt()'s return
value and just take the estimated RTT it provides - which will be capped
at 1 second.

Fixes: 1d4adfaf6574 ("rxrpc: Make rxrpc_kernel_get_srtt() indicate validity")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/166965503999.3392585.13954054113218099395.stgit@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agonet: mdiobus: fix unbalanced node reference count
Yang Yingliang [Thu, 24 Nov 2022 15:01:30 +0000 (23:01 +0800)]
net: mdiobus: fix unbalanced node reference count

I got the following report while doing device(mscc-miim) load test
with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled:

  OF: ERROR: memory leak, expected refcount 1 instead of 2,
  of_node_get()/of_node_put() unbalanced - destroy cset entry:
  attach overlay node /spi/soc@0/mdio@7107009c/ethernet-phy@0

If the 'fwnode' is not an acpi node, the refcount is get in
fwnode_mdiobus_phy_device_register(), but it has never been
put when the device is freed in the normal path. So call
fwnode_handle_put() in phy_device_release() to avoid leak.

If it's an acpi node, it has never been get, but it's put
in the error path, so call fwnode_handle_get() before
phy_device_register() to keep get/put operation balanced.

Fixes: bc1bee3b87ee ("net: mdiobus: Introduce fwnode_mdiobus_register_phy()")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221124150130.609420-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet: hsr: Fix potential use-after-free
YueHaibing [Fri, 25 Nov 2022 07:57:24 +0000 (15:57 +0800)]
net: hsr: Fix potential use-after-free

The skb is delivered to netif_rx() which may free it, after calling this,
dereferencing skb may trigger use-after-free.

Fixes: f421436a591d ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20221125075724.27912-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agotipc: re-fetch skb cb after tipc_msg_validate
Xin Long [Fri, 25 Nov 2022 17:46:43 +0000 (12:46 -0500)]
tipc: re-fetch skb cb after tipc_msg_validate

As the call trace shows, the original skb was freed in tipc_msg_validate(),
and dereferencing the old skb cb would cause an use-after-free crash.

  BUG: KASAN: use-after-free in tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]
  Call Trace:
   <IRQ>
   tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]
   tipc_crypto_rcv+0xd32/0x1ec0 [tipc]
   tipc_rcv+0x744/0x1150 [tipc]
  ...
  Allocated by task 47078:
   kmem_cache_alloc_node+0x158/0x4d0
   __alloc_skb+0x1c1/0x270
   tipc_buf_acquire+0x1e/0xe0 [tipc]
   tipc_msg_create+0x33/0x1c0 [tipc]
   tipc_link_build_proto_msg+0x38a/0x2100 [tipc]
   tipc_link_timeout+0x8b8/0xef0 [tipc]
   tipc_node_timeout+0x2a1/0x960 [tipc]
   call_timer_fn+0x2d/0x1c0
  ...
  Freed by task 47078:
   tipc_msg_validate+0x7b/0x440 [tipc]
   tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc]
   tipc_crypto_rcv+0xd32/0x1ec0 [tipc]
   tipc_rcv+0x744/0x1150 [tipc]

This patch fixes it by re-fetching the skb cb from the new allocated skb
after calling tipc_msg_validate().

Fixes: fc1b6d6de220 ("tipc: introduce TIPC encryption & authentication")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/1b1cdba762915325bd8ef9a98d0276eb673df2a5.1669398403.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge branch 'mptcp-more-fixes-for-6-1'
Jakub Kicinski [Tue, 29 Nov 2022 02:03:11 +0000 (18:03 -0800)]
Merge branch 'mptcp-more-fixes-for-6-1'

Matthieu Baerts says:

====================
mptcp: More fixes for 6.1

Patch 1 makes sure data received after a close will still be processed
and acked as exepected. This is a regression for a commit introduced
in v5.11.

Patch 2 fixes a kernel deadlock found when working on validating TFO
with a listener MPTCP socket. This is not directly linked to TFO but
it is easier to reproduce the issue with it. This fixes a bug introduced
by a commit from v6.0.
====================

Link: https://lore.kernel.org/r/20221128154239.1999234-1-matthieu.baerts@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agomptcp: fix sleep in atomic at close time
Paolo Abeni [Mon, 28 Nov 2022 15:42:38 +0000 (16:42 +0100)]
mptcp: fix sleep in atomic at close time

Matt reported a splat at msk close time:

    BUG: sleeping function called from invalid context at net/mptcp/protocol.c:2877
    in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 155, name: packetdrill
    preempt_count: 201, expected: 0
    RCU nest depth: 0, expected: 0
    4 locks held by packetdrill/155:
    #0: ffff888001536990 (&sb->s_type->i_mutex_key#6){+.+.}-{3:3}, at: __sock_release (net/socket.c:650)
    #1: ffff88800b498130 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_close (net/mptcp/protocol.c:2973)
    #2: ffff88800b49a130 (sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk (net/mptcp/protocol.c:2363)
    #3: ffff88800b49a0b0 (slock-AF_INET){+...}-{2:2}, at: __lock_sock_fast (include/net/sock.h:1820)
    Preemption disabled at:
    0x0
    CPU: 1 PID: 155 Comm: packetdrill Not tainted 6.1.0-rc5 #365
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
    Call Trace:
    <TASK>
    dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4))
    __might_resched.cold (kernel/sched/core.c:9891)
    __mptcp_destroy_sock (include/linux/kernel.h:110)
    __mptcp_close (net/mptcp/protocol.c:2959)
    mptcp_subflow_queue_clean (include/net/sock.h:1777)
    __mptcp_close_ssk (net/mptcp/protocol.c:2363)
    mptcp_destroy_common (net/mptcp/protocol.c:3170)
    mptcp_destroy (include/net/sock.h:1495)
    __mptcp_destroy_sock (net/mptcp/protocol.c:2886)
    __mptcp_close (net/mptcp/protocol.c:2959)
    mptcp_close (net/mptcp/protocol.c:2974)
    inet_release (net/ipv4/af_inet.c:432)
    __sock_release (net/socket.c:651)
    sock_close (net/socket.c:1367)
    __fput (fs/file_table.c:320)
    task_work_run (kernel/task_work.c:181 (discriminator 1))
    exit_to_user_mode_prepare (include/linux/resume_user_mode.h:49)
    syscall_exit_to_user_mode (kernel/entry/common.c:130)
    do_syscall_64 (arch/x86/entry/common.c:87)
    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)

We can't call mptcp_close under the 'fast' socket lock variant, replace
it with a sock_lock_nested() as the relevant code is already under the
listening msk socket lock protection.

Reported-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/316
Fixes: 30e51b923e43 ("mptcp: fix unreleased socket in accept queue")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agomptcp: don't orphan ssk in mptcp_close()
Menglong Dong [Mon, 28 Nov 2022 15:42:37 +0000 (16:42 +0100)]
mptcp: don't orphan ssk in mptcp_close()

All of the subflows of a msk will be orphaned in mptcp_close(), which
means the subflows are in DEAD state. After then, DATA_FIN will be sent,
and the other side will response with a DATA_ACK for this DATA_FIN.

However, if the other side still has pending data, the data that received
on these subflows will not be passed to the msk, as they are DEAD and
subflow_data_ready() will not be called in tcp_data_ready(). Therefore,
these data can't be acked, and they will be retransmitted again and again,
until timeout.

Fix this by setting ssk->sk_socket and ssk->sk_wq to 'NULL', instead of
orphaning the subflows in __mptcp_close(), as Paolo suggested.

Fixes: e16163b6e2b7 ("mptcp: refactor shutdown and close")
Reviewed-by: Biao Jiang <benbjiang@tencent.com>
Reviewed-by: Mengen Sun <mengensun@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agodsa: lan9303: Correct stat name
Jerry Ray [Mon, 28 Nov 2022 19:35:59 +0000 (13:35 -0600)]
dsa: lan9303: Correct stat name

This patch changes the reported ethtool statistics for the lan9303
family of parts covered by this driver.

The TxUnderRun statistic label is renamed to RxShort to accurately
reflect what stat the device is reporting.  I did not reorder the
statistics as that might cause problems with existing user code that
are expecting the stats at a certain offset.

Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
Signed-off-by: Jerry Ray <jerry.ray@microchip.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221128193559.6572-1-jerry.ray@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'wireless-2022-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Tue, 29 Nov 2022 01:58:45 +0000 (17:58 -0800)]
Merge tag 'wireless-2022-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v6.1

Third, and hopefully final, set of fixes for v6.1. We are marking the
rsi driver as orphan, have some Information Element parsing fixes to
wilc1000 driver and three small fixes to the stack.

* tag 'wireless-2022-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration
  wifi: cfg80211: don't allow multi-BSSID in S1G
  wifi: cfg80211: fix buffer overflow in elem comparison
  wifi: wilc1000: validate number of channels
  wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attribute
  wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_OPER_CHANNEL attribute
  wifi: wilc1000: validate pairwise and authentication suite offsets
  MAINTAINERS: mark rsi wifi driver as orphan
====================

Link: https://lore.kernel.org/r/20221128113513.6F459C433C1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Jakub Kicinski [Tue, 29 Nov 2022 01:06:51 +0000 (17:06 -0800)]
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
bpf 2022-11-25

We've added 10 non-merge commits during the last 8 day(s) which contain
a total of 7 files changed, 48 insertions(+), 30 deletions(-).

The main changes are:

1) Several libbpf ringbuf fixes related to probing for its availability,
   size overflows when mmaping a 2G ringbuf and rejection of invalid
   reservationsizes, from Hou Tao.

2) Fix a buggy return pointer in libbpf for attach_raw_tp function,
   from Jiri Olsa.

3) Fix a local storage BPF map bug where the value's spin lock field
   can get initialized incorrectly, from Xu Kuohai.

4) Two follow-up fixes in kprobe_multi BPF selftests for BPF CI,
   from Jiri Olsa.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Make test_bench_attach serial
  selftests/bpf: Filter out default_idle from kprobe_multi bench
  bpf: Set and check spin lock value in sk_storage_map_test
  bpf: Do not copy spin lock field from user in bpf_selem_alloc
  libbpf: Check the validity of size in user_ring_buffer__reserve()
  libbpf: Handle size overflow for user ringbuf mmap
  libbpf: Handle size overflow for ringbuf mmap
  libbpf: Use page size as max_entries when probing ring buffer map
  bpf, perf: Use subprog name when reporting subprog ksymbol
  libbpf: Use correct return pointer in attach_raw_tp
====================

Link: https://lore.kernel.org/r/20221125001034.29473-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoipv4: Fix route deletion when nexthop info is not specified
Ido Schimmel [Thu, 24 Nov 2022 21:09:32 +0000 (23:09 +0200)]
ipv4: Fix route deletion when nexthop info is not specified

When the kernel receives a route deletion request from user space it
tries to delete a route that matches the route attributes specified in
the request.

If only prefix information is specified in the request, the kernel
should delete the first matching FIB alias regardless of its associated
FIB info. However, an error is currently returned when the FIB info is
backed by a nexthop object:

 # ip nexthop add id 1 via 192.0.2.2 dev dummy10
 # ip route add 198.51.100.0/24 nhid 1
 # ip route del 198.51.100.0/24
 RTNETLINK answers: No such process

Fix by matching on such a FIB info when legacy nexthop attributes are
not specified in the request. An earlier check already covers the case
where a nexthop ID is specified in the request.

Add tests that cover these flows. Before the fix:

 # ./fib_nexthops.sh -t ipv4_fcnal
 ...
 TEST: Delete route when not specifying nexthop attributes           [FAIL]

 Tests passed:  11
 Tests failed:   1

After the fix:

 # ./fib_nexthops.sh -t ipv4_fcnal
 ...
 TEST: Delete route when not specifying nexthop attributes           [ OK ]

 Tests passed:  12
 Tests failed:   0

No regressions in other tests:

 # ./fib_nexthops.sh
 ...
 Tests passed: 228
 Tests failed:   0

 # ./fib_tests.sh
 ...
 Tests passed: 186
 Tests failed:   0

Cc: stable@vger.kernel.org
Reported-by: Jonas Gorski <jonas.gorski@gmail.com>
Tested-by: Jonas Gorski <jonas.gorski@gmail.com>
Fixes: 493ced1ac47c ("ipv4: Allow routes to use nexthop objects")
Fixes: 6bf92d70e690 ("net: ipv4: fix route with nexthop object delete warning")
Fixes: 61b91eb33a69 ("ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20221124210932.2470010-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'devicetree-fixes-for-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 28 Nov 2022 22:59:17 +0000 (14:59 -0800)]
Merge tag 'devicetree-fixes-for-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fix from Rob Herring:

 - Fix DT node reference counting for of_fwnode_get_reference_args()
   exit path

* tag 'devicetree-fixes-for-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: property: decrement node refcount in of_fwnode_get_reference_args()

2 years agoMerge tag 'trace-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Mon, 28 Nov 2022 22:42:29 +0000 (14:42 -0800)]
Merge tag 'trace-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix osnoise duration type to 64bit not 32bit

 - Have histogram triggers be able to handle an unexpected NULL pointer
   for the record event, which can happen when the histogram first
   starts up

 - Clear out ring buffers when dynamic events are removed, as the type
   that is saved in the ring buffer is used to read the event, and a
   stale type that is reused by another event could cause use after free
   issues

 - Trivial comment fix

 - Fix memory leak in user_event_create()

* tag 'trace-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Free buffers when a used dynamic event is removed
  tracing: Add tracing_reset_all_online_cpus_unlocked() function
  tracing: Fix race where histograms can be called before the event
  tracing/osnoise: Fix duration type
  tracing/user_events: Fix memory leak in user_event_create()
  tracing/hist: add in missing * in comment blocks

2 years agoMerge tag 'fuse-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszer...
Linus Torvalds [Mon, 28 Nov 2022 21:08:46 +0000 (13:08 -0800)]
Merge tag 'fuse-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse fix from Miklos Szeredi:
 "Fix a regression introduced in -rc4"

* tag 'fuse-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: lock inode unconditionally in fuse_fallocate()

2 years agoMerge branch 'wwan-iosm-fixes'
David S. Miller [Mon, 28 Nov 2022 11:31:59 +0000 (11:31 +0000)]
Merge branch 'wwan-iosm-fixes'

M Chetan Kumar says:

====================
net: wwan: iosm: fix build errors & bugs

This patch series fixes iosm driver bugs & build errors.

PATCH1: Fix kernel build robot reported error.
PATCH2: Fix build error reported on armhf while preparing
        6.1-rc5 for Debian.
PATCH3: Fix UL throughput crash.
PATCH4: Fix incorrect skb length.

Refer to commit message for details.

Changes since v1:
* PATCH4: Fix sparse warning.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: wwan: iosm: fix incorrect skb length
M Chetan Kumar [Thu, 24 Nov 2022 10:38:32 +0000 (16:08 +0530)]
net: wwan: iosm: fix incorrect skb length

skb passed to network layer contains incorrect length.

In mux aggregation protocol, the datagram block received
from device contains block signature, packet & datagram
header. The right skb len to be calculated by subracting
datagram pad len from datagram length.

Whereas in mux lite protocol, the skb contains single
datagram so skb len is calculated by subtracting the
packet offset from datagram header.

Fixes: 1f52d7b62285 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: wwan: iosm: fix crash in peek throughput test
M Chetan Kumar [Thu, 24 Nov 2022 10:38:17 +0000 (16:08 +0530)]
net: wwan: iosm: fix crash in peek throughput test

Peek throughput UL test is resulting in crash. If the UL
transfer block free list is exhaust, the peeked skb is freed.
In the next transfer freed skb is referred from UL list which
results in crash.

Don't free the skb if UL transfer blocks are unavailable. The
pending skb will be picked for transfer on UL transfer block
available.

Fixes: 1f52d7b62285 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: wwan: iosm: fix dma_alloc_coherent incompatible pointer type
M Chetan Kumar [Thu, 24 Nov 2022 10:38:03 +0000 (16:08 +0530)]
net: wwan: iosm: fix dma_alloc_coherent incompatible pointer type

Fix build error reported on armhf while preparing 6.1-rc5
for Debian.

iosm_ipc_protocol.c:244:36: error: passing argument 3 of
'dma_alloc_coherent' from incompatible pointer type.

Change phy_ap_shm type from phys_addr_t to dma_addr_t.

Fixes: faed4c6f6f48 ("net: iosm: shared memory protocol")
Reported-by: Bonaccorso Salvatore <carnil@debian.org>
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: wwan: iosm: fix kernel test robot reported error
M Chetan Kumar [Thu, 24 Nov 2022 10:37:46 +0000 (16:07 +0530)]
net: wwan: iosm: fix kernel test robot reported error

sparse warnings - iosm_ipc_mux_codec.c:1474 using plain
integer as NULL pointer.

Use skb_trim() to reset skb tail & len.

Fixes: 9413491e20e1 ("net: iosm: encode or decode datagram")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: phylink: fix PHY validation with rate adaption
Russell King (Oracle) [Thu, 24 Nov 2022 09:06:48 +0000 (09:06 +0000)]
net: phylink: fix PHY validation with rate adaption

Tim Harvey reports that link modes which he does not expect to be
supported are being advertised, and this is because of the workaround
we have for PHYs that switch interface modes.

Fix this up by checking whether rate matching will be used for the
requested interface mode, and if rate matching will be used, perform
validation only with the requested interface mode, rather than invoking
this workaround.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: ethernet: nixge: fix NULL dereference
Yuri Karpov [Thu, 24 Nov 2022 08:43:03 +0000 (11:43 +0300)]
net: ethernet: nixge: fix NULL dereference

In function nixge_hw_dma_bd_release() dereference of NULL pointer
priv->rx_bd_v is possible for the case of its allocation failure in
nixge_hw_dma_bd_init().

Move for() loop with priv->rx_bd_v dereference under the check for
its validity.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 492caffa8a1a ("net: ethernet: nixge: Add support for National Instruments XGE netdev")
Signed-off-by: Yuri Karpov <YKarpov@ispras.ru>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet/9p: Fix a potential socket leak in p9_socket_open
Wang Hai [Thu, 24 Nov 2022 08:10:05 +0000 (16:10 +0800)]
net/9p: Fix a potential socket leak in p9_socket_open

Both p9_fd_create_tcp() and p9_fd_create_unix() will call
p9_socket_open(). If the creation of p9_trans_fd fails,
p9_fd_create_tcp() and p9_fd_create_unix() will return an
error directly instead of releasing the cscoket, which will
result in a socket leak.

This patch adds sock_release() to fix the leak issue.

Fixes: 6b18662e239a ("9p connect fixes")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
ACKed-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: net_netdev: Fix error handling in ntb_netdev_init_module()
Yuan Can [Thu, 24 Nov 2022 07:09:17 +0000 (07:09 +0000)]
net: net_netdev: Fix error handling in ntb_netdev_init_module()

The ntb_netdev_init_module() returns the ntb_transport_register_client()
directly without checking its return value, if
ntb_transport_register_client() failed, the NTB client device is not
unregistered.

Fix by unregister NTB client device when ntb_transport_register_client()
failed.

Fixes: 548c237c0a99 ("net: Add support for NTB virtual ethernet device")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: ethernet: ti: am65-cpsw: fix error handling in am65_cpsw_nuss_probe()
Zhang Changzhong [Thu, 24 Nov 2022 03:03:08 +0000 (11:03 +0800)]
net: ethernet: ti: am65-cpsw: fix error handling in am65_cpsw_nuss_probe()

The am65_cpsw_nuss_cleanup_ndev() function calls unregister_netdev()
even if register_netdev() fails, which triggers WARN_ON(1) in
unregister_netdevice_many(). To fix it, make sure that
unregister_netdev() is called only on registered netdev.

Compile tested only.

Fixes: 84b4aa493249 ("net: ethernet: ti: am65-cpsw: add multi port support in mac-only mode")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoMerge tag 'mlx5-fixes-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git...
David S. Miller [Mon, 28 Nov 2022 10:56:19 +0000 (10:56 +0000)]
Merge tag 'mlx5-fixes-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-fixes-2022-11-24
This series provides bug fixes to mlx5 driver.

Focusing on error handling and proper memory management in mlx5, in
general and in the newly added macsec module.

I still have few fixes left in my queue and I hope those will be the
last ones for mlx5 for this cycle.

Please pull and let me know if there is any problem.

Happy thanksgiving.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
David S. Miller [Mon, 28 Nov 2022 09:23:10 +0000 (09:23 +0000)]
Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-11-23 (ixgbevf, i40e, fm10k, iavf, e100)

This series contains updates to various Intel drivers.

Shang XiaoJing fixes init module error path stop to resource leaks for
ixgbevf and i40e.

Yuan Can also does the same for fm10k and iavf.

Wang Hai stops freeing of skb as it was causing use after free error for
e100.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoLinux 6.1-rc7
Linus Torvalds [Sun, 27 Nov 2022 21:31:48 +0000 (13:31 -0800)]
Linux 6.1-rc7

2 years agoMerge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 27 Nov 2022 20:40:06 +0000 (12:40 -0800)]
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs fix from Al Viro:
 "Amir's copy_file_range() fix"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: fix copy_file_range() averts filesystem freeze protection

2 years agoMerge tag 'usb-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 27 Nov 2022 20:30:57 +0000 (12:30 -0800)]
Merge tag 'usb-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 6.1-rc7 that resolve some reported
  problems:

   - cdnsp driver fixes for reported problems

   - dwc3 fixes for some small reported problems

   - uvc gadget driver fix for reported regression

  All of these have been in linux-next with no reported problems"

* tag 'usb-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: cdnsp: fix issue with ZLP - added TD_SIZE = 1
  usb: dwc3: gadget: Clear ep descriptor last
  usb: dwc3: exynos: Fix remove() function
  usb: cdnsp: Fix issue with Clear Feature Halt Endpoint
  usb: dwc3: gadget: Disable GUSB2PHYCFG.SUSPHY for End Transfer
  usb: gadget: uvc: also use try_format in set_format

2 years agoMerge tag 'char-misc-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 27 Nov 2022 20:17:10 +0000 (12:17 -0800)]
Merge tag 'char-misc-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small driver fixes for 6.1-rc7, they include:

   - build warning fix for the vdso when using new versions of grep

   - iio driver fixes for reported issues

   - small nvmem driver fixes

   - fpga Kconfig fix

   - interconnect dt binding fix

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  lib/vdso: use "grep -E" instead of "egrep"
  nvmem: lan9662-otp: Change return type of lan9662_otp_wait_flag_clear()
  nvmem: rmem: Fix return value check in rmem_read()
  fpga: m10bmc-sec: Fix kconfig dependencies
  dt-bindings: iio: adc: Remove the property "aspeed,trim-data-valid"
  iio: adc: aspeed: Remove the trim valid dts property.
  iio: core: Fix entry not deleted when iio_register_sw_trigger_type() fails
  iio: accel: bma400: Fix memory leak in bma400_get_steps_reg()
  iio: light: rpr0521: add missing Kconfig dependencies
  iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw
  iio: health: afe4403: Fix oob read in afe4403_read_raw
  iio: light: apds9960: fix wrong register for gesture gain
  dt-bindings: interconnect: qcom,msm8998-bwmon: Correct SC7280 CPU compatible

2 years agoMerge tag 'timers_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Nov 2022 20:11:00 +0000 (12:11 -0800)]
Merge tag 'timers_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Return the proper timer register width (31 bits) for a 32-bit signed
   register in order to avoid a timer interrupt storm on ARM XGene-1
   hardware running in NO_HZ mode

* tag 'timers_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/arm_arch_timer: Fix XGene-1 TVAL register math error

2 years agoMerge tag 'objtool_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Nov 2022 20:08:17 +0000 (12:08 -0800)]
Merge tag 'objtool_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Borislav Petkov:

 - Handle different output of readelf on different distros running
   ppc64le which confuses faddr2line's function offsets conversion

* tag 'objtool_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  scripts/faddr2line: Fix regression in name resolution on ppc64le

2 years agoMerge tag 'x86_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Nov 2022 19:59:14 +0000 (11:59 -0800)]
Merge tag 'x86_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - ioremap: mask out the bits which are not part of the physical address
   *after* the size computation is done to prevent any hypothetical
   ioremap failures

 - Change the MSR save/restore functionality during suspend to rely on
   flags denoting that the related MSRs are actually supported vs
   reading them and assuming they are (an Atom one allows reading but
   not writing, thus breaking this scheme at resume time)

 - prevent IV reuse in the AES-GCM communication scheme between SNP
   guests and the AMD secure processor

* tag 'x86_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ioremap: Fix page aligned size calculation in __ioremap_caller()
  x86/pm: Add enumeration check before spec MSRs save/restore setup
  x86/tsx: Add a feature bit for TSX control MSR support
  virt/sev-guest: Prevent IV reuse in the SNP guest driver

2 years agoMerge tag 'perf_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Nov 2022 19:53:41 +0000 (11:53 -0800)]
Merge tag 'perf_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:
 "Two more fixes to the perf sigtrap handling:

   - output the address in the sample only when it has been requested

   - handle the case where user-only events can hit in kernel and thus
     upset the sigtrap sanity checking"

* tag 'perf_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Consider OS filter fail
  perf: Fixup SIGTRAP and sample_flags interaction

2 years agonet: phy: fix null-ptr-deref while probe() failed
Yang Yingliang [Wed, 23 Nov 2022 13:28:08 +0000 (21:28 +0800)]
net: phy: fix null-ptr-deref while probe() failed

I got a null-ptr-deref report as following when doing fault injection test:

BUG: kernel NULL pointer dereference, address: 0000000000000058
Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 PID: 253 Comm: 507-spi-dm9051 Tainted: G    B            N 6.1.0-rc3+
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:klist_put+0x2d/0xd0
Call Trace:
 <TASK>
 klist_remove+0xf1/0x1c0
 device_release_driver_internal+0x23e/0x2d0
 bus_remove_device+0x1bd/0x240
 device_del+0x357/0x770
 phy_device_remove+0x11/0x30
 mdiobus_unregister+0xa5/0x140
 release_nodes+0x6a/0xa0
 devres_release_all+0xf8/0x150
 device_unbind_cleanup+0x19/0xd0

//probe path:
phy_device_register()
  device_add()

phy_connect
  phy_attach_direct() //set device driver
    probe() //it's failed, driver is not bound
    device_bind_driver() // probe failed, it's not called

//remove path:
phy_device_remove()
  device_del()
    device_release_driver_internal()
      __device_release_driver() //dev->drv is not NULL
        klist_remove() <- knode_driver is not added yet, cause null-ptr-deref

In phy_attach_direct(), after setting the 'dev->driver', probe() fails,
device_bind_driver() is not called, so the knode_driver->n_klist is not
set, then it causes null-ptr-deref in __device_release_driver() while
deleting device. Fix this by setting dev->driver to NULL in the error
path in phy_attach_direct().

Fixes: e13934563db0 ("[PATCH] PHY Layer fixup")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 27 Nov 2022 17:08:40 +0000 (09:08 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86:

   - Fixes for Xen emulation. While nobody should be enabling it in the
     kernel (the only public users of the feature are the selftests),
     the bug effectively allows userspace to read arbitrary memory.

   - Correctness fixes for nested hypervisors that do not intercept INIT
     or SHUTDOWN on AMD; the subsequent CPU reset can cause a
     use-after-free when it disables virtualization extensions. While
     downgrading the panic to a WARN is quite easy, the full fix is a
     bit more laborious; there are also tests. This is the bulk of the
     pull request.

   - Fix race condition due to incorrect mmu_lock use around
     make_mmu_pages_available().

  Generic:

   - Obey changes to the kvm.halt_poll_ns module parameter in VMs not
     using KVM_CAP_HALT_POLL, restoring behavior from before the
     introduction of the capability"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Update gfn_to_pfn_cache khva when it moves within the same page
  KVM: x86/xen: Only do in-kernel acceleration of hypercalls for guest CPL0
  KVM: x86/xen: Validate port number in SCHEDOP_poll
  KVM: x86/mmu: Fix race condition in direct_page_fault
  KVM: x86: remove exit_int_info warning in svm_handle_exit
  KVM: selftests: add svm part to triple_fault_test
  KVM: x86: allow L1 to not intercept triple fault
  kvm: selftests: add svm nested shutdown test
  KVM: selftests: move idt_entry to header
  KVM: x86: forcibly leave nested mode on vCPU reset
  KVM: x86: add kvm_leave_nested
  KVM: x86: nSVM: harden svm_free_nested against freeing vmcb02 while still in use
  KVM: x86: nSVM: leave nested mode on vCPU free
  KVM: Obey kvm.halt_poll_ns in VMs not using KVM_CAP_HALT_POLL
  KVM: Avoid re-reading kvm->max_halt_poll_ns during halt-polling
  KVM: Cap vcpu->halt_poll_ns before halting rather than after

2 years agoMerge tag '6.1-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 27 Nov 2022 16:48:26 +0000 (08:48 -0800)]
Merge tag '6.1-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two small cifs/smb3 client fixes:

   - an unlock missing in an error path in copychunk_range found by
     xfstest 476

   - a fix for a use after free in a debug code path"

* tag '6.1-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix missing unlock in cifs_file_copychunk_range()
  cifs: Use after free in debug code

2 years agoMerge tag 'kbuild-fixes-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 27 Nov 2022 00:38:56 +0000 (16:38 -0800)]
Merge tag 'kbuild-fixes-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix CC_HAS_ASM_GOTO_TIED_OUTPUT test in Kconfig

 - Fix noisy "No such file or directory" message when
   KBUILD_BUILD_VERSION is passed

 - Include rust/ in source tarballs

 - Fix missing FORCE for ARCH=nios2 builds

* tag 'kbuild-fixes-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  nios2: add FORCE for vmlinuz.gz
  scripts: add rust in scripts/Makefile.package
  kbuild: fix "cat: .version: No such file or directory"
  init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash

2 years agonios2: add FORCE for vmlinuz.gz
Randy Dunlap [Thu, 24 Nov 2022 03:20:53 +0000 (19:20 -0800)]
nios2: add FORCE for vmlinuz.gz

Add FORCE to placate a warning from make:

arch/nios2/boot/Makefile:24: FORCE prerequisite is missing

Fixes: 2fc8483fdcde ("nios2: Build infrastructure")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoMerge tag 'nfsd-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Linus Torvalds [Sat, 26 Nov 2022 20:25:49 +0000 (12:25 -0800)]
Merge tag 'nfsd-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fix from Chuck Lever:

 - Fix rare data corruption on READ operations

* tag 'nfsd-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  NFSD: Fix reads with a non-zero offset that don't end on a page boundary

2 years agoMerge tag 'for-v6.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux...
Linus Torvalds [Sat, 26 Nov 2022 02:02:49 +0000 (18:02 -0800)]
Merge tag 'for-v6.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from Sebastian Reichel:

 - rk817: Two error handling fixes

 - ip5xxx: fix inter overflow in current calculation

 - ab8500: fix thermal zone probing

* tag 'for-v6.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: supply: ab8500: Defer thermal zone probe
  power: supply: ip5xxx: Fix integer overflow in current_now calculation
  power: supply: rk817: Change rk817_chg_cur_to_reg to int
  power: supply: rk817: check correct variable

2 years agoMerge tag 'block-6.1-2022-11-25' of git://git.kernel.dk/linux
Linus Torvalds [Sat, 26 Nov 2022 01:50:57 +0000 (17:50 -0800)]
Merge tag 'block-6.1-2022-11-25' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - A few fixes for s390 sads (Stefan, Colin)

 - Ensure that ublk doesn't reorder requests, as that can be problematic
   on devices that need specific ordering (Ming)

 - Fix a queue reference leak in disk allocation handling (Christoph)

* tag 'block-6.1-2022-11-25' of git://git.kernel.dk/linux:
  ublk_drv: don't forward io commands in reserve order
  s390/dasd: fix possible buffer overflow in copy_pair_show
  s390/dasd: fix no record found for raw_track_access
  s390/dasd: increase printing of debug data payload
  s390/dasd: Fix spelling mistake "Ivalid" -> "Invalid"
  blk-mq: fix queue reference leak on blk_mq_alloc_disk_for_queue failure

2 years agoMerge tag 'io_uring-6.1-2022-11-25' of git://git.kernel.dk/linux
Linus Torvalds [Sat, 26 Nov 2022 01:46:04 +0000 (17:46 -0800)]
Merge tag 'io_uring-6.1-2022-11-25' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - A few poll related fixes. One fixing a race condition between poll
   cancelation and trigger, and one making the overflow handling a bit
   more robust (Lin, Pavel)

 - Fix an fput() for error handling in the direct file table (Lin)

 - Fix for a regression introduced in this cycle, where we don't always
   get TIF_NOTIFY_SIGNAL cleared appropriately (me)

* tag 'io_uring-6.1-2022-11-25' of git://git.kernel.dk/linux:
  io_uring: clear TIF_NOTIFY_SIGNAL if set and task_work not available
  io_uring/poll: fix poll_refs race with cancelation
  io_uring/filetable: fix file reference underflow
  io_uring: make poll refs more robust
  io_uring: cmpxchg for poll arm refs release

2 years agoMerge tag 'zonefs-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Sat, 26 Nov 2022 00:34:39 +0000 (16:34 -0800)]
Merge tag 'zonefs-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs fixes from Damien Le Moal:

 - Fix a race between zonefs module initialization of sysfs attribute
   directory and mounting a drive (from Xiaoxu).

 - Fix active zone accounting in the rare case of an IO error due to a
   zone transition to offline or read-only state (from me).

* tag 'zonefs-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: Fix active zone accounting
  zonefs: Fix race between modprobe and mount

2 years agoMerge tag 'regulator-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 25 Nov 2022 21:54:48 +0000 (13:54 -0800)]
Merge tag 'regulator-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "This is more changes than I'd like this late although the diffstat is
  still fairly small, I kept on holding off as new fixes came in to give
  things time to soak in -next but should probably have tagged and sent
  an additional pull request earlier.

  There's some relatively large fixes to the twl6030 driver to fix
  issues with the TWL6032 variant which resulted from some work on the
  core TWL6030 driver, a couple of fixes for error handling paths
  (mostly in the core), and a nice stability fix for the sgl51000 driver
  that's been pulled out of a BSP"

* tag 'regulator-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: twl6030: fix get status of twl6032 regulators
  regulator: twl6030: re-add TWL6032_SUBCLASS
  regulator: slg51000: Wait after asserting CS pin
  regulator: core: fix UAF in destroy_regulator()
  regulator: rt5759: fix OOB in validate_desc()
  regulator: core: fix kobject release warning and memory leak in regulator_register()

2 years agoMerge tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 25 Nov 2022 21:24:05 +0000 (13:24 -0800)]
Merge tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - fix a regression in nowait + buffered write

 - in zoned mode fix endianness when comparing super block generation

 - locking and lockdep fixes:
     - fix potential sleeping under spinlock when setting qgroup limit
     - lockdep warning fixes when btrfs_path is freed after copy_to_user
     - do not modify log tree while holding a leaf from fs tree locked

 - fix freeing of sysfs files of static features on error

 - use kv.alloc for zone map allocation as a fallback to avoid warnings
   due to high order allocation

 - send, avoid unaligned encoded writes when attempting to clone range

* tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: sysfs: normalize the error handling branch in btrfs_init_sysfs()
  btrfs: do not modify log tree while holding a leaf from fs tree locked
  btrfs: use kvcalloc in btrfs_get_dev_zone_info
  btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
  btrfs: send: avoid unaligned encoded writes when attempting to clone range
  btrfs: zoned: fix missing endianness conversion in sb_write_pointer
  btrfs: free btrfs_path before copying subvol info to userspace
  btrfs: free btrfs_path before copying fspath to userspace
  btrfs: free btrfs_path before copying inodes to userspace
  btrfs: free btrfs_path before copying root refs to userspace
  btrfs: fix assertion failure and blocking during nowait buffered write

2 years agoMerge tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 25 Nov 2022 20:43:33 +0000 (12:43 -0800)]
Merge tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These revert a recent change in the schedutil cpufreq governor that
  had not been expected to make any functional difference, but turned
  out to introduce a performance regression, fix an initialization issue
  in the amd-pstate driver and make it actually replace the venerable
  ACPI cpufreq driver on the supported systems by default.

  Specifics:

   - Revert a recent schedutil cpufreq governor change that introduced a
     performace regression on Pixel 6 (Sam Wu)

   - Fix amd-pstate driver initialization after running the kernel via
     kexec (Wyes Karny)

   - Turn amd-pstate into a built-in driver which allows it to take
     precedence over acpi-cpufreq by default on supported systems and
     amend it with a mechanism to disable this behavior (Perry Yuan)

   - Update amd-pstate documentation in accordance with the other
     changes made to it (Perry Yuan)"

* tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Documentation: add amd-pstate kernel command line options
  Documentation: amd-pstate: add driver working mode introduction
  cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection
  cpufreq: amd-pstate: change amd-pstate driver to be built-in type
  cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL register at init
  Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy"

2 years agoMerge tag 's390-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 25 Nov 2022 20:37:24 +0000 (12:37 -0800)]
Merge tag 's390-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

 - Fix size of incorrectly increased from four to eight bytes TOD field
   of crash dump save area. As result in case of kdump NT_S390_TODPREG
   ELF notes section contains correct value and "detected read beyond
   size of field" compiler warning goes away.

 - Fix memory leak in cryptographic Adjunct Processors (AP) module on
   initialization failure path.

 - Add Gerald Schaefer <gerald.schaefer@linux.ibm.com> and Alexander
   Gordeev <agordeev@linux.ibm.com> as S390 memory management
   maintainers. Also rename the S390 section to S390 ARCHITECTURE to be
   a bit more precise.

* tag 's390-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  MAINTAINERS: add S390 MM section
  s390/crashdump: fix TOD programmable field size
  s390/ap: fix memory leak in ap_init_qci_info()

2 years agoMerge tag 'hyperv-fixes-signed-20221125' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 25 Nov 2022 20:32:42 +0000 (12:32 -0800)]
Merge tag 'hyperv-fixes-signed-20221125' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Fix IRTE allocation in Hyper-V PCI controller (Dexuan Cui)

 - Fix handling of SCSI srb_status and capacity change events (Michael
   Kelley)

 - Restore VP assist page after CPU offlining and onlining (Vitaly
   Kuznetsov)

 - Fix some memory leak issues in VMBus (Yang Yingliang)

* tag 'hyperv-fixes-signed-20221125' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register()
  Drivers: hv: vmbus: fix double free in the error path of vmbus_add_channel_work()
  PCI: hv: Only reuse existing IRTE allocation for Multi-MSI
  scsi: storvsc: Fix handling of srb_status and capacity change events
  x86/hyperv: Restore VP assist page after cpu offlining/onlining

2 years agoMerge tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Fri, 25 Nov 2022 18:18:25 +0000 (10:18 -0800)]
Merge tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "24 MM and non-MM hotfixes. 8 marked cc:stable and 16 for post-6.0
  issues.

  There have been a lot of hotfixes this cycle, and this is quite a
  large batch given how far we are into the -rc cycle. Presumably a
  reflection of the unusually large amount of MM material which went
  into 6.1-rc1"

* tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (24 commits)
  test_kprobes: fix implicit declaration error of test_kprobes
  nilfs2: fix nilfs_sufile_mark_dirty() not set segment usage as dirty
  mm/cgroup/reclaim: fix dirty pages throttling on cgroup v1
  mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
  swapfile: fix soft lockup in scan_swap_map_slots
  hugetlb: fix __prep_compound_gigantic_page page flag setting
  kfence: fix stack trace pruning
  proc/meminfo: fix spacing in SecPageTables
  mm: multi-gen LRU: retry folios written back while isolated
  mailmap: update email address for Satya Priya
  mm/migrate_device: return number of migrating pages in args->cpages
  kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible
  MAINTAINERS: update Alex Hung's email address
  mailmap: update Alex Hung's email address
  mm: mmap: fix documentation for vma_mas_szero
  mm/damon/sysfs-schemes: skip stats update if the scheme directory is removed
  mm/memory: return vm_fault_t result from migrate_to_ram() callback
  mm: correctly charge compressed memory to its memcg
  ipc/shm: call underlying open/close vm_ops
  gcov: clang: fix the buffer overflow issue
  ...

2 years agoMerge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Fri, 25 Nov 2022 18:12:43 +0000 (10:12 -0800)]
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "A couple of fixes, one of them for this cycle regression..."

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: vfs_tmpfile: ensure O_EXCL flag is enforced
  fs: use acquire ordering in __fget_light()

2 years agoio_uring: clear TIF_NOTIFY_SIGNAL if set and task_work not available
Jens Axboe [Fri, 25 Nov 2022 16:36:29 +0000 (09:36 -0700)]
io_uring: clear TIF_NOTIFY_SIGNAL if set and task_work not available

With how task_work is added and signaled, we can have TIF_NOTIFY_SIGNAL
set and no task_work pending as it got run in a previous loop. Treat
TIF_NOTIFY_SIGNAL like get_signal(), always clear it if set regardless
of whether or not task_work is pending to run.

Cc: stable@vger.kernel.org
Fixes: 46a525e199e4 ("io_uring: don't gate task_work run on TIF_NOTIFY_SIGNAL")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'sound-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 25 Nov 2022 17:26:18 +0000 (09:26 -0800)]
Merge tag 'sound-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few more last-minute fixes for 6.1 that have been gathered in the
  last week; nothing looks too worrisome, mostly device-specific small
  fixes, including the ABI fix for ASoC SOF"

* tag 'sound-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: soc-pcm: Add NULL check in BE reparenting
  ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event
  ASoC: SOF: dai: move AMD_HS to end of list to restore backwards-compatibility
  ASoC: max98373: Add checks for devm_kcalloc
  ASoC: rt711-sdca: fix the latency time of clock stop prepare state machine transitions
  ASoC: soc-pcm: Don't zero TDM masks in __soc_pcm_open()
  ASoC: sgtl5000: Reset the CHIP_CLK_CTRL reg on remove
  ASoC: hdac_hda: fix hda pcm buffer overflow issue
  ASoC: stm32: i2s: remove irqf_oneshot flag
  ASoC: wm8962: Wait for updated value of WM8962_CLOCKING1 register

2 years agoMerge tag 'drm-fixes-2022-11-25' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 25 Nov 2022 17:20:42 +0000 (09:20 -0800)]
Merge tag 'drm-fixes-2022-11-25' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Weekly fixes, amdgpu has not quite settled down.

  Most of the changes are small, and the non-amdgpu ones are all fine.
  There are a bunch of DP MST DSC fixes that fix some issues introduced
  in a previous larger MST rework.

  The biggest one is mainly propagating some error values properly
  instead of bool returns, and I think it just looks large but doesn't
  really change anything too much, except propagating errors that are
  required to avoid deadlocks. I've gone over it and a few others and
  they've had some decent testing over the last few weeks.

  Summary:

  amdgpu:
   - amdgpu gang submit fix
   - DCN 3.1.4 fixes
   - DP MST DSC deadlock fixes
   - HMM userptr fixes
   - Fix Aldebaran CU occupancy reporting
   - GFX11 fixes
   - PSP suspend/resume fix
   - DCE12 KASAN fix
   - DCN 3.2.x fixes
   - Rotated cursor fix
   - SMU 13.x fix
   - DELL platform suspend/resume fixes
   - VCN4 SR-IOV fix
   - Display regression fix for polled connectors

  i915:
   - Fix GVT KVM reference count handling
   - Never purge busy TTM objects
   - Fix warn in intel_display_power_*_domain() functions

  dma-buf:
   - Use dma_fence_unwrap_for_each when importing sync files
   - Fix race in dma_heap_add()

  fbcon:
   - Fix use of uninitialized memory in logo"

* tag 'drm-fixes-2022-11-25' of git://anongit.freedesktop.org/drm/drm: (30 commits)
  drm/amdgpu/vcn: re-use original vcn0 doorbell value
  drm/amdgpu: Partially revert "drm/amdgpu: update drm_display_info correctly when the edid is read"
  drm/amd/display: No display after resume from WB/CB
  drm/amdgpu: fix use-after-free during gpu recovery
  drm/amd/pm: update driver if header for smu_13_0_7
  drm/amd/display: Fix rotated cursor offset calculation
  drm/amd/display: Use new num clk levels struct for max mclk index
  drm/amd/display: Avoid setting pixel rate divider to N/A
  drm/amd/display: Use viewport height for subvp mall allocation size
  drm/amd/display: Update soc bounding box for dcn32/dcn321
  drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
  drm/amdgpu/psp: don't free PSP buffers on suspend
  fbcon: Use kzalloc() in fbcon_prepare_logo()
  dma-buf: fix racing conflict of dma_heap_add()
  drm/amd/amdgpu: reserve vm invalidation engine for firmware
  drm/amdgpu: Enable Aldebaran devices to report CU Occupancy
  drm/amdgpu: fix userptr HMM range handling v2
  drm/amdgpu: always register an MMU notifier for userptr
  drm/amdgpu/dm/mst: Fix uninitialized var in pre_compute_mst_dsc_configs_for_state()
  drm/amdgpu/dm/dp_mst: Don't grab mst_mgr->lock when computing DSC state
  ...

2 years agoio_uring/poll: fix poll_refs race with cancelation
Lin Ma [Fri, 25 Nov 2022 14:15:54 +0000 (07:15 -0700)]
io_uring/poll: fix poll_refs race with cancelation

There is an interesting race condition of poll_refs which could result
in a NULL pointer dereference. The crash trace is like:

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 30781 Comm: syz-executor.2 Not tainted 6.0.0-g493ffd6605b2 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:io_poll_remove_entry io_uring/poll.c:154 [inline]
RIP: 0010:io_poll_remove_entries+0x171/0x5b4 io_uring/poll.c:190
Code: ...
RSP: 0018:ffff88810dfefba0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900030c4000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000008 R08: ffffffff9764d3dd R09: fffffbfff3836781
R10: fffffbfff3836781 R11: 0000000000000000 R12: 1ffff11003422d60
R13: ffff88801a116b04 R14: ffff88801a116ac0 R15: dffffc0000000000
FS:  00007f9c07497700(0000) GS:ffff88811a600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb5c00ea98 CR3: 0000000105680005 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 io_apoll_task_func+0x3f/0xa0 io_uring/poll.c:299
 handle_tw_list io_uring/io_uring.c:1037 [inline]
 tctx_task_work+0x37e/0x4f0 io_uring/io_uring.c:1090
 task_work_run+0x13a/0x1b0 kernel/task_work.c:177
 get_signal+0x2402/0x25a0 kernel/signal.c:2635
 arch_do_signal_or_restart+0x3b/0x660 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop kernel/entry/common.c:166 [inline]
 exit_to_user_mode_prepare+0xc2/0x160 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x58/0x160 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The root cause for this is a tiny overlooking in
io_poll_check_events() when cocurrently run with poll cancel routine
io_poll_cancel_req().

The interleaving to trigger use-after-free:

CPU0                                       |  CPU1
                                           |
io_apoll_task_func()                       |  io_poll_cancel_req()
 io_poll_check_events()                    |
  // do while first loop                   |
  v = atomic_read(...)                     |
  // v = poll_refs = 1                     |
  ...                                      |  io_poll_mark_cancelled()
                                           |   atomic_or()
                                           |   // poll_refs =
IO_POLL_CANCEL_FLAG | 1
                                           |
  atomic_sub_return(...)                   |
  // poll_refs = IO_POLL_CANCEL_FLAG       |
  // loop continue                         |
                                           |
                                           |  io_poll_execute()
                                           |   io_poll_get_ownership()
                                           |   // poll_refs =
IO_POLL_CANCEL_FLAG | 1
                                           |   // gets the ownership
  v = atomic_read(...)                     |
  // poll_refs not change                  |
                                           |
  if (v & IO_POLL_CANCEL_FLAG)             |
   return -ECANCELED;                      |
  // io_poll_check_events return           |
  // will go into                          |
  // io_req_complete_failed() free req     |
                                           |
                                           |  io_apoll_task_func()
                                           |  // also go into
io_req_complete_failed()

And the interleaving to trigger the kernel WARNING:

CPU0                                       |  CPU1
                                           |
io_apoll_task_func()                       |  io_poll_cancel_req()
 io_poll_check_events()                    |
  // do while first loop                   |
  v = atomic_read(...)                     |
  // v = poll_refs = 1                     |
  ...                                      |  io_poll_mark_cancelled()
                                           |   atomic_or()
                                           |   // poll_refs =
IO_POLL_CANCEL_FLAG | 1
                                           |
  atomic_sub_return(...)                   |
  // poll_refs = IO_POLL_CANCEL_FLAG       |
  // loop continue                         |
                                           |
  v = atomic_read(...)                     |
  // v = IO_POLL_CANCEL_FLAG               |
                                           |  io_poll_execute()
                                           |   io_poll_get_ownership()
                                           |   // poll_refs =
IO_POLL_CANCEL_FLAG | 1
                                           |   // gets the ownership
                                           |
  WARN_ON_ONCE(!(v & IO_POLL_REF_MASK)))   |
  // v & IO_POLL_REF_MASK = 0 WARN         |
                                           |
                                           |  io_apoll_task_func()
                                           |  // also go into
io_req_complete_failed()

By looking up the source code and communicating with Pavel, the
implementation of this atomic poll refs should continue the loop of
io_poll_check_events() just to avoid somewhere else to grab the
ownership. Therefore, this patch simply adds another AND operation to
make sure the loop will stop if it finds the poll_refs is exactly equal
to IO_POLL_CANCEL_FLAG. Since io_poll_cancel_req() grabs ownership and
will finally make its way to io_req_complete_failed(), the req will
be reclaimed as expected.

Fixes: aa43477b0402 ("io_uring: poll rework")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
[axboe: tweak description and code style]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoio_uring/filetable: fix file reference underflow
Lin Ma [Tue, 22 Nov 2022 18:40:15 +0000 (02:40 +0800)]
io_uring/filetable: fix file reference underflow

There is an interesting reference bug when -ENOMEM occurs in calling of
io_install_fixed_file(). KASan report like below:

[   14.057131] ==================================================================
[   14.059161] BUG: KASAN: use-after-free in unix_get_socket+0x10/0x90
[   14.060975] Read of size 8 at addr ffff88800b09cf20 by task kworker/u8:2/45
[   14.062684]
[   14.062768] CPU: 2 PID: 45 Comm: kworker/u8:2 Not tainted 6.1.0-rc4 #1
[   14.063099] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[   14.063666] Workqueue: events_unbound io_ring_exit_work
[   14.063936] Call Trace:
[   14.064065]  <TASK>
[   14.064175]  dump_stack_lvl+0x34/0x48
[   14.064360]  print_report+0x172/0x475
[   14.064547]  ? _raw_spin_lock_irq+0x83/0xe0
[   14.064758]  ? __virt_addr_valid+0xef/0x170
[   14.064975]  ? unix_get_socket+0x10/0x90
[   14.065167]  kasan_report+0xad/0x130
[   14.065353]  ? unix_get_socket+0x10/0x90
[   14.065553]  unix_get_socket+0x10/0x90
[   14.065744]  __io_sqe_files_unregister+0x87/0x1e0
[   14.065989]  ? io_rsrc_refs_drop+0x1c/0xd0
[   14.066199]  io_ring_exit_work+0x388/0x6a5
[   14.066410]  ? io_uring_try_cancel_requests+0x5bf/0x5bf
[   14.066674]  ? try_to_wake_up+0xdb/0x910
[   14.066873]  ? virt_to_head_page+0xbe/0xbe
[   14.067080]  ? __schedule+0x574/0xd20
[   14.067273]  ? read_word_at_a_time+0xe/0x20
[   14.067492]  ? strscpy+0xb5/0x190
[   14.067665]  process_one_work+0x423/0x710
[   14.067879]  worker_thread+0x2a2/0x6f0
[   14.068073]  ? process_one_work+0x710/0x710
[   14.068284]  kthread+0x163/0x1a0
[   14.068454]  ? kthread_complete_and_exit+0x20/0x20
[   14.068697]  ret_from_fork+0x22/0x30
[   14.068886]  </TASK>
[   14.069000]
[   14.069088] Allocated by task 289:
[   14.069269]  kasan_save_stack+0x1e/0x40
[   14.069463]  kasan_set_track+0x21/0x30
[   14.069652]  __kasan_slab_alloc+0x58/0x70
[   14.069899]  kmem_cache_alloc+0xc5/0x200
[   14.070100]  __alloc_file+0x20/0x160
[   14.070283]  alloc_empty_file+0x3b/0xc0
[   14.070479]  path_openat+0xc3/0x1770
[   14.070689]  do_filp_open+0x150/0x270
[   14.070888]  do_sys_openat2+0x113/0x270
[   14.071081]  __x64_sys_openat+0xc8/0x140
[   14.071283]  do_syscall_64+0x3b/0x90
[   14.071466]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   14.071791]
[   14.071874] Freed by task 0:
[   14.072027]  kasan_save_stack+0x1e/0x40
[   14.072224]  kasan_set_track+0x21/0x30
[   14.072415]  kasan_save_free_info+0x2a/0x50
[   14.072627]  __kasan_slab_free+0x106/0x190
[   14.072858]  kmem_cache_free+0x98/0x340
[   14.073075]  rcu_core+0x427/0xe50
[   14.073249]  __do_softirq+0x110/0x3cd
[   14.073440]
[   14.073523] Last potentially related work creation:
[   14.073801]  kasan_save_stack+0x1e/0x40
[   14.074017]  __kasan_record_aux_stack+0x97/0xb0
[   14.074264]  call_rcu+0x41/0x550
[   14.074436]  task_work_run+0xf4/0x170
[   14.074619]  exit_to_user_mode_prepare+0x113/0x120
[   14.074858]  syscall_exit_to_user_mode+0x1d/0x40
[   14.075092]  do_syscall_64+0x48/0x90
[   14.075272]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   14.075529]
[   14.075612] Second to last potentially related work creation:
[   14.075900]  kasan_save_stack+0x1e/0x40
[   14.076098]  __kasan_record_aux_stack+0x97/0xb0
[   14.076325]  task_work_add+0x72/0x1b0
[   14.076512]  fput+0x65/0xc0
[   14.076657]  filp_close+0x8e/0xa0
[   14.076825]  __x64_sys_close+0x15/0x50
[   14.077019]  do_syscall_64+0x3b/0x90
[   14.077199]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   14.077448]
[   14.077530] The buggy address belongs to the object at ffff88800b09cf00
[   14.077530]  which belongs to the cache filp of size 232
[   14.078105] The buggy address is located 32 bytes inside of
[   14.078105]  232-byte region [ffff88800b09cf00ffff88800b09cfe8)
[   14.078685]
[   14.078771] The buggy address belongs to the physical page:
[   14.079046] page:000000001bd520e7 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800b09de00 pfn:0xb09c
[   14.079575] head:000000001bd520e7 order:1 compound_mapcount:0 compound_pincount:0
[   14.079946] flags: 0x100000000010200(slab|head|node=0|zone=1)
[   14.080244] raw: 0100000000010200 0000000000000000 dead000000000001 ffff88800493cc80
[   14.080629] raw: ffff88800b09de00 0000000080190018 00000001ffffffff 0000000000000000
[   14.081016] page dumped because: kasan: bad access detected
[   14.081293]
[   14.081376] Memory state around the buggy address:
[   14.081618]  ffff88800b09ce00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.081974]  ffff88800b09ce80: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
[   14.082336] >ffff88800b09cf00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   14.082690]                                ^
[   14.082909]  ffff88800b09cf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc
[   14.083266]  ffff88800b09d000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   14.083622] ==================================================================

The actual tracing of this bug is shown below:

commit 8c71fe750215 ("io_uring: ensure fput() called correspondingly
when direct install fails") adds an additional fput() in
io_fixed_fd_install() when io_file_bitmap_get() returns error values. In
that case, the routine will never make it to io_install_fixed_file() due
to an early return.

static int io_fixed_fd_install(...)
{
  if (alloc_slot) {
    ...
    ret = io_file_bitmap_get(ctx);
    if (unlikely(ret < 0)) {
      io_ring_submit_unlock(ctx, issue_flags);
      fput(file);
      return ret;
    }
    ...
  }
  ...
  ret = io_install_fixed_file(req, file, issue_flags, file_slot);
  ...
}

In the above scenario, the reference is okay as io_fixed_fd_install()
ensures the fput() is called when something bad happens, either via
bitmap or via inner io_install_fixed_file().

However, the commit 61c1b44a21d7 ("io_uring: fix deadlock on iowq file
slot alloc") breaks the balance because it places fput() into the common
path for both io_file_bitmap_get() and io_install_fixed_file(). Since
io_install_fixed_file() handles the fput() itself, the reference
underflow come across then.

There are some extra commits make the current code into
io_fixed_fd_install() -> __io_fixed_fd_install() ->
io_install_fixed_file()

However, the fact that there is an extra fput() is called if
io_install_fixed_file() calls fput(). Traversing through the code, I
find that the existing two callers to __io_fixed_fd_install():
io_fixed_fd_install() and io_msg_send_fd() have fput() when handling
error return, this patch simply removes the fput() in
io_install_fixed_file() to fix the bug.

Fixes: 61c1b44a21d7 ("io_uring: fix deadlock on iowq file slot alloc")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Link: https://lore.kernel.org/r/be4ba4b.5d44.184a0a406a4.Coremail.linma@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoio_uring: make poll refs more robust
Pavel Begunkov [Sun, 20 Nov 2022 16:57:42 +0000 (16:57 +0000)]
io_uring: make poll refs more robust

poll_refs carry two functions, the first is ownership over the request.
The second is notifying the io_poll_check_events() that there was an
event but wake up couldn't grab the ownership, so io_poll_check_events()
should retry.

We want to make poll_refs more robust against overflows. Instead of
always incrementing it, which covers two purposes with one atomic, check
if poll_refs is elevated enough and if so set a retry flag without
attempts to grab ownership. The gap between the bias check and following
atomics may seem racy, but we don't need it to be strict. Moreover there
might only be maximum 4 parallel updates: by the first and the second
poll entries, __io_arm_poll_handler() and cancellation. From those four,
only poll wake ups may be executed multiple times, but they're protected
by a spin.

Cc: stable@vger.kernel.org
Reported-by: Lin Ma <linma@zju.edu.cn>
Fixes: aa43477b04025 ("io_uring: poll rework")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c762bc31f8683b3270f3587691348a7119ef9c9d.1668963050.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoio_uring: cmpxchg for poll arm refs release
Pavel Begunkov [Sun, 20 Nov 2022 16:57:41 +0000 (16:57 +0000)]
io_uring: cmpxchg for poll arm refs release

Replace atomically substracting the ownership reference at the end of
arming a poll with a cmpxchg. We try to release ownership by setting 0
assuming that poll_refs didn't change while we were arming. If it did
change, we keep the ownership and use it to queue a tw, which is fully
capable to process all events and (even tolerates spurious wake ups).

It's a bit more elegant as we reduce races b/w setting the cancellation
flag and getting refs with this release, and with that we don't have to
worry about any kinds of underflows. It's not the fastest path for
polling. The performance difference b/w cmpxchg and atomic dec is
usually negligible and it's not the fastest path.

Cc: stable@vger.kernel.org
Fixes: aa43477b04025 ("io_uring: poll rework")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0c95251624397ea6def568ff040cad2d7926fd51.1668963050.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agowifi: mac8021: fix possible oob access in ieee80211_get_rate_duration
Lorenzo Bianconi [Tue, 8 Nov 2022 15:19:26 +0000 (16:19 +0100)]
wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration

Fix possible out-of-bound access in ieee80211_get_rate_duration routine
as reported by the following UBSAN report:

UBSAN: array-index-out-of-bounds in net/mac80211/airtime.c:455:47
index 15 is out of range for type 'u16 [12]'
CPU: 2 PID: 217 Comm: kworker/u32:10 Not tainted 6.1.0-060100rc3-generic
Hardware name: Acer Aspire TC-281/Aspire TC-281, BIOS R01-A2 07/18/2017
Workqueue: mt76 mt76u_tx_status_data [mt76_usb]
Call Trace:
 <TASK>
 show_stack+0x4e/0x61
 dump_stack_lvl+0x4a/0x6f
 dump_stack+0x10/0x18
 ubsan_epilogue+0x9/0x43
 __ubsan_handle_out_of_bounds.cold+0x42/0x47
ieee80211_get_rate_duration.constprop.0+0x22f/0x2a0 [mac80211]
 ? ieee80211_tx_status_ext+0x32e/0x640 [mac80211]
 ieee80211_calc_rx_airtime+0xda/0x120 [mac80211]
 ieee80211_calc_tx_airtime+0xb4/0x100 [mac80211]
 mt76x02_send_tx_status+0x266/0x480 [mt76x02_lib]
 mt76x02_tx_status_data+0x52/0x80 [mt76x02_lib]
 mt76u_tx_status_data+0x67/0xd0 [mt76_usb]
 process_one_work+0x225/0x400
 worker_thread+0x50/0x3e0
 ? process_one_work+0x400/0x400
 kthread+0xe9/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30

Fixes: db3e1c40cf2f ("mac80211: Import airtime calculation code from mt76")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agowifi: cfg80211: don't allow multi-BSSID in S1G
Johannes Berg [Fri, 25 Nov 2022 11:36:58 +0000 (12:36 +0100)]
wifi: cfg80211: don't allow multi-BSSID in S1G

In S1G beacon frames there shouldn't be multi-BSSID elements
since that's not supported, remove that to avoid a potential
integer underflow and/or misparsing the frames due to the
different length of the fixed part of the frame.

While at it, initialize non_tx_data so we don't send garbage
values to the user (even if it doesn't seem to matter now.)

Reported-and-tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de>
Fixes: 9eaffe5078ca ("cfg80211: convert S1G beacon to scan results")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agowifi: cfg80211: fix buffer overflow in elem comparison
Johannes Berg [Fri, 25 Nov 2022 11:36:57 +0000 (12:36 +0100)]
wifi: cfg80211: fix buffer overflow in elem comparison

For vendor elements, the code here assumes that 5 octets
are present without checking. Since the element itself is
already checked to fit, we only need to check the length.

Reported-and-tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de>
Fixes: 0b8fb8235be8 ("cfg80211: Parsing of Multiple BSSID information in scanning")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agonet: loopback: use NET_NAME_PREDICTABLE for name_assign_type
Rasmus Villemoes [Wed, 23 Nov 2022 14:18:28 +0000 (15:18 +0100)]
net: loopback: use NET_NAME_PREDICTABLE for name_assign_type

When the name_assign_type attribute was introduced (commit
685343fc3ba6, "net: add name_assign_type netdev attribute"), the
loopback device was explicitly mentioned as one which would make use
of NET_NAME_PREDICTABLE:

    The name_assign_type attribute gives hints where the interface name of a
    given net-device comes from. These values are currently defined:
...
      NET_NAME_PREDICTABLE:
        The ifname has been assigned by the kernel in a predictable way
        that is guaranteed to avoid reuse and always be the same for a
        given device. Examples include statically created devices like
        the loopback device [...]

Switch to that so that reading /sys/class/net/lo/name_assign_type
produces something sensible instead of returning -EINVAL.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: fec: don't reset irq coalesce settings to defaults on "ip link up"
Rasmus Villemoes [Wed, 23 Nov 2022 13:38:52 +0000 (14:38 +0100)]
net: fec: don't reset irq coalesce settings to defaults on "ip link up"

Currently, when a FEC device is brought up, the irq coalesce settings
are reset to their default values (1000us, 200 frames). That's
unexpected, and breaks for example use of an appropriate .link file to
make systemd-udev apply the desired
settings (https://www.freedesktop.org/software/systemd/man/systemd.link.html),
or any other method that would do a one-time setup during early boot.

Refactor the code so that fec_restart() instead uses
fec_enet_itr_coal_set(), which simply applies the settings that are
stored in the private data, and initialize that private data with the
default values.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoocteontx2-pf: Fix pfc_alloc_status array overflow
Suman Ghosh [Wed, 23 Nov 2022 10:59:38 +0000 (16:29 +0530)]
octeontx2-pf: Fix pfc_alloc_status array overflow

This patch addresses pfc_alloc_status array overflow occurring for
send queue index value greater than PFC priority. Queue index can be
greater than supported PFC priority for multiple scenarios (e.g. QoS,
during non zero SMQ allocation for a PF/VF).
In those scenarios the API should return default tx scheduler '0'.
This is causing mbox errors as otx2_get_smq_idx returing invalid smq value.

Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: stmmac: Set MAC's flow control register to reflect current settings
Goh, Wei Sheng [Wed, 23 Nov 2022 10:51:10 +0000 (18:51 +0800)]
net: stmmac: Set MAC's flow control register to reflect current settings

Currently, pause frame register GMAC_RX_FLOW_CTRL_RFE is not updated
correctly when 'ethtool -A <IFACE> autoneg off rx off tx off' command
is issued. This fix ensures the flow control change is reflected directly
in the GMAC_RX_FLOW_CTRL_RFE register.

Fixes: 46f69ded988d ("net: stmmac: Use resolved link config in mac_link_up()")
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Goh, Wei Sheng <wei.sheng.goh@intel.com>
Signed-off-by: Noor Azura Ahmad Tarmizi <noor.azura.ahmad.tarmizi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoaquantia: Do not purge addresses when setting the number of rings
Izabela Bakollari [Wed, 23 Nov 2022 10:10:08 +0000 (11:10 +0100)]
aquantia: Do not purge addresses when setting the number of rings

IPV6 addresses are purged when setting the number of rx/tx
rings using ethtool -G. The function aq_set_ringparam
calls dev_close, which removes the addresses. As a solution,
call an internal function (aq_ndev_close).

Fixes: c1af5427954b ("net: aquantia: Ethtool based ring size configuration")
Signed-off-by: Izabela Bakollari <ibakolla@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoqed: avoid defines prefixed with CONFIG
Lukas Bulwahn [Wed, 23 Nov 2022 10:33:05 +0000 (11:33 +0100)]
qed: avoid defines prefixed with CONFIG

Defines prefixed with "CONFIG" should be limited to proper Kconfig options,
that are introduced in a Kconfig file.

Here, constants for bitmap indices of some configs are defined and these
defines begin with the config's name, and are suffixed with BITMAP_IDX.

To avoid defines prefixed with "CONFIG", name these constants
BITMAP_IDX_FOR_CONFIG_XYZ instead of CONFIG_XYZ_BITMAP_IDX.

No functional change.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoqlcnic: fix sleep-in-atomic-context bugs caused by msleep
Duoming Zhou [Wed, 23 Nov 2022 10:06:42 +0000 (18:06 +0800)]
qlcnic: fix sleep-in-atomic-context bugs caused by msleep

The watchdog timer is used to monitor whether the process
of transmitting data is timeout. If we use qlcnic driver,
the dev_watchdog() that is the timer handler of watchdog
timer will call qlcnic_tx_timeout() to process the timeout.
But the qlcnic_tx_timeout() calls msleep(), as a result,
the sleep-in-atomic-context bugs will happen. The processes
are shown below:

   (atomic context)
dev_watchdog
  qlcnic_tx_timeout
    qlcnic_83xx_idc_request_reset
      qlcnic_83xx_lock_driver
        msleep

---------------------------

   (atomic context)
dev_watchdog
  qlcnic_tx_timeout
    qlcnic_83xx_idc_request_reset
      qlcnic_83xx_lock_driver
        qlcnic_83xx_recover_driver_lock
          msleep

Fix by changing msleep() to mdelay(), the mdelay() is
busy-waiting and the bugs could be mitigated.

Fixes: 629263acaea3 ("qlcnic: 83xx CNA inter driver communication mechanism")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agozonefs: Fix active zone accounting
Damien Le Moal [Mon, 21 Nov 2022 07:29:37 +0000 (16:29 +0900)]
zonefs: Fix active zone accounting

If a file zone transitions to the offline or readonly state from an
active state, we must clear the zone active flag and decrement the
active seq file counter. Do so in zonefs_account_active() using the new
zonefs inode flags ZONEFS_ZONE_OFFLINE and ZONEFS_ZONE_READONLY. These
flags are set if necessary in zonefs_check_zone_condition() based on the
result of report zones operation after an IO error.

Fixes: 87c9ce3ffec9 ("zonefs: Add active seq file accounting")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
2 years agoMerge tag 'linux-can-fixes-for-6.1-20221124' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Fri, 25 Nov 2022 07:51:37 +0000 (07:51 +0000)]
Merge tag 'linux-can-fixes-for-6.1-20221124' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
linux-can-fixes-for-6.1-20221124

this is a pull request of 8 patches for net/master.

Ziyang Xuan contributes a patch for the can327, fixing a potential SKB
leak when the netdev is down.

Heiko Schocher's patch for the sja1000 driver fixes the width of the
definition of the OCR_MODE_MASK.

Zhang Changzhong contributes 4 patches. In the sja1000_isa, cc770, and
m_can_pci drivers the error path in the probe() function and in case
of the etas_es58x a function that is called by probe() are fixed.

Jiasheng Jiang add a missing check for the return value of the
devm_clk_get() in the m_can driver.

Yasushi SHOJI's patch for the mcba_usb fixes setting of the external
termination resistor.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agovfs: fix copy_file_range() averts filesystem freeze protection
Amir Goldstein [Thu, 17 Nov 2022 20:52:49 +0000 (22:52 +0200)]
vfs: fix copy_file_range() averts filesystem freeze protection

Commit 868f9f2f8e00 ("vfs: fix copy_file_range() regression in cross-fs
copies") removed fallback to generic_copy_file_range() for cross-fs
cases inside vfs_copy_file_range().

To preserve behavior of nfsd and ksmbd server-side-copy, the fallback to
generic_copy_file_range() was added in nfsd and ksmbd code, but that
call is missing sb_start_write(), fsnotify hooks and more.

Ideally, nfsd and ksmbd would pass a flag to vfs_copy_file_range() that
will take care of the fallback, but that code would be subtle and we got
vfs_copy_file_range() logic wrong too many times already.

Instead, add a flag to explicitly request vfs_copy_file_range() to
perform only generic_copy_file_range() and let nfsd and ksmbd use this
flag only in the fallback path.

This choise keeps the logic changes to minimum in the non-nfsd/ksmbd code
paths to reduce the risk of further regressions.

Fixes: 868f9f2f8e00 ("vfs: fix copy_file_range() regression in cross-fs copies")
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2 years agoMerge tag 'amd-drm-fixes-6.1-2022-11-23' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 25 Nov 2022 00:55:23 +0000 (10:55 +1000)]
Merge tag 'amd-drm-fixes-6.1-2022-11-23' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.1-2022-11-23:

amdgpu:
- DCN 3.1.4 fixes
- DP MST DSC deadlock fixes
- HMM userptr fixes
- Fix Aldebaran CU occupancy reporting
- GFX11 fixes
- PSP suspend/resume fix
- DCE12 KASAN fix
- DCN 3.2.x fixes
- Rotated cursor fix
- SMU 13.x fix
- DELL platform suspend/resume fixes
- VCN4 SR-IOV fix
- Display regression fix for polled connectors

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221123143453.8977-1-alexander.deucher@amd.com
2 years agoMerge tag 'drm-intel-fixes-2022-11-24' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Thu, 24 Nov 2022 23:42:01 +0000 (09:42 +1000)]
Merge tag 'drm-intel-fixes-2022-11-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix GVT KVM reference count handling (Sean Christopherson)
- Never purge busy TTM objects (Matthew Auld)
- Fix warn in intel_display_power_*_domain() functions (Imre Deak)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y38u44hb1LZfZC+M@tursulin-desk
2 years agoMerge tag 'drm-misc-fixes-2022-11-24' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 24 Nov 2022 23:21:10 +0000 (09:21 +1000)]
Merge tag 'drm-misc-fixes-2022-11-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v6.1-rc7:
- Another amdgpu gang submit fix.
- Use dma_fence_unwrap_for_each when importing sync files.
- Fix race in dma_heap_add().
- Fix use of uninitialized memory in logo.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5721505-4823-98ef-7d6f-0ea478221391@linux.intel.com
2 years agoMerge tag 'net-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 24 Nov 2022 19:19:20 +0000 (11:19 -0800)]
Merge tag 'net-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from rxrpc, netfilter and xfrm.

  Current release - regressions:

   - dccp/tcp: fix bhash2 issues related to WARN_ON() in
     inet_csk_get_port()

   - l2tp: don't sleep and disable BH under writer-side sk_callback_lock

   - eth: ice: fix handling of burst tx timestamps

  Current release - new code bugs:

   - xfrm: squelch kernel warning in case XFRM encap type is not
     available

   - eth: mlx5e: fix possible race condition in macsec extended packet
     number update routine

  Previous releases - regressions:

   - neigh: decrement the family specific qlen

   - netfilter: fix ipset regression

   - rxrpc: fix race between conn bundle lookup and bundle removal
     [ZDI-CAN-15975]

   - eth: iavf: do not restart tx queues after reset task failure

   - eth: nfp: add port from netdev validation for EEPROM access

   - eth: mtk_eth_soc: fix potential memory leak in mtk_rx_alloc()

  Previous releases - always broken:

   - tipc: set con sock in tipc_conn_alloc

   - nfc:
      - fix potential memory leaks
      - fix incorrect sizing calculations in EVT_TRANSACTION

   - eth: octeontx2-af: fix pci device refcount leak

   - eth: bonding: fix ICMPv6 header handling when receiving IPv6
     messages

   - eth: prestera: add missing unregister_netdev() in
     prestera_port_create()

   - eth: tsnep: fix rotten packets

  Misc:

   - usb: qmi_wwan: add support for LARA-L6"

* tag 'net-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits)
  net: thunderx: Fix the ACPI memory leak
  octeontx2-af: Fix reference count issue in rvu_sdp_init()
  net: altera_tse: release phylink resources in tse_shutdown()
  virtio_net: Fix probe failed when modprobe virtio_net
  net: wwan: t7xx: Fix the ACPI memory leak
  octeontx2-pf: Add check for devm_kcalloc
  net: enetc: preserve TX ring priority across reconfiguration
  net: marvell: prestera: add missing unregister_netdev() in prestera_port_create()
  nfc: st-nci: fix incorrect sizing calculations in EVT_TRANSACTION
  nfc: st-nci: fix memory leaks in EVT_TRANSACTION
  nfc: st-nci: fix incorrect validating logic in EVT_TRANSACTION
  Documentation: networking: Update generic_netlink_howto URL
  net/cdc_ncm: Fix multicast RX support for CDC NCM devices with ZLP
  net: usb: qmi_wwan: add u-blox 0x1342 composition
  l2tp: Don't sleep and disable BH under writer-side sk_callback_lock
  net: dm9051: Fix missing dev_kfree_skb() in dm9051_loop_rx()
  arcnet: fix potential memory leak in com20020_probe()
  ipv4: Fix error return code in fib_table_insert()
  net: ethernet: mtk_eth_soc: fix memory leak in error path
  net: ethernet: mtk_eth_soc: fix resource leak in error path
  ...

2 years agoMerge tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Thu, 24 Nov 2022 19:14:09 +0000 (11:14 -0800)]
Merge tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "There are a bunch of late fixes that just came in, in particular a
  longer series for Rockchips devicetree files, but most of those just
  address cosmetic errors that were found during the binding validation.

  There are a couple of code changes:

   - A regression fix to the IXP42x PCI bus

   - A fix for a memory leak on optee, and another one for mach-mxs

   - Two fixes for the sunxi rsb bus driver, to address problems with
     the shutdown logic

  The rest are small but important devicetree fixes for a number of
  individual boards, addressing issues across all platforms:

   - arm global timer on older rockchip SoCs is unstable and needs to be
     disabled in favor of a more reliable clocksource

   - Corrections to fix bluetooth, mmc, and networking on a few Rockchip
     boards

   - at91/sam9g20ek UDC needs a pin controller config change

   - an omap board runs into mmc probe errors because of regulator nodes
     in the wrong place

   - imx8mp-evk has a minor inaccuracy with its pin config, but without
     user visible impact

   - The Allwinner H6 Hantro G2 video decoder needs an IOMMU reference
     to prevent the driver from crashing"

* tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
  bus: ixp4xx: Don't touch bit 7 on IXP42x
  ARM: dts: imx6q-prti6q: Fix ref/tcxo-clock-frequency properties
  arm64: dts: imx8mp-evk: correct pcie pad settings
  ARM: mxs: fix memory leak in mxs_machine_init()
  ARM: dts: at91: sam9g20ek: enable udc vbus gpio pinctrl
  tee: optee: fix possible memory leak in optee_register_device()
  arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2
  media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
  bus: sunxi-rsb: Support atomic transfers
  bus: sunxi-rsb: Remove the shutdown callback
  ARM: dts: rockchip: disable arm_global_timer on rk3066 and rk3188
  arm64: dts: rockchip: Fix Pine64 Quartz4-B PMIC interrupt
  ARM: dts: am335x-pcm-953: Define fixed regulators in root node
  ARM: dts: rockchip: rk3188: fix lcdc1-rgb24 node name
  arm64: dts: rockchip: fix ir-receiver node names
  ARM: dts: rockchip: fix ir-receiver node names
  arm64: dts: rockchip: fix adc-keys sub node names
  ARM: dts: rockchip: fix adc-keys sub node names
  arm: dts: rockchip: remove clock-frequency from rtc
  arm: dts: rockchip: fix node name for hym8563 rtc
  ...

2 years agoMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Thu, 24 Nov 2022 19:10:51 +0000 (11:10 -0800)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Two fixes for 6.1:

   - fix stacktraces for tracepoint events in Thumb2 mode

   - fix for noMMU ZERO_PAGE() implementation"

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9266/1: mm: fix no-MMU ZERO_PAGE() implementation
  ARM: 9251/1: perf: Fix stacktraces for tracepoint events in THUMB2 kernels

2 years agoMerge tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 24 Nov 2022 19:09:01 +0000 (11:09 -0800)]
Merge tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix two build warnings, a copy_thread() bug, two page table
  manipulation bugs, and some trivial cleanups"

* tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  docs/zh_CN/LoongArch: Fix wrong description of FPRs Note
  LoongArch: Fix unsigned comparison with less than zero
  LoongArch: Set _PAGE_DIRTY only if _PAGE_MODIFIED is set in {pmd,pte}_mkwrite()
  LoongArch: Set _PAGE_DIRTY only if _PAGE_WRITE is set in {pmd,pte}_mkdirty()
  LoongArch: Clear FPU/SIMD thread info flags for kernel thread
  LoongArch: SMP: Change prefix from loongson3 to loongson
  LoongArch: Combine acpi_boot_table_init() and acpi_boot_init()
  LoongArch: Makefile: Use "grep -E" instead of "egrep"

2 years agoMerge tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 24 Nov 2022 18:22:42 +0000 (10:22 -0800)]
Merge tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a regression in the lazytime code that was introduced in v6.1-rc1,
  and a use-after-free that can be triggered by a maliciously corrupted
  file system"

* tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  fs: do not update freeing inode i_io_list
  ext4: fix use-after-free in ext4_ext_shift_extents

2 years agowifi: wilc1000: validate number of channels
Phil Turnbull [Wed, 23 Nov 2022 15:35:43 +0000 (10:35 -0500)]
wifi: wilc1000: validate number of channels

There is no validation of 'e->no_of_channels' which can trigger an
out-of-bounds write in the following 'memset' call. Validate that the
number of channels does not extends beyond the size of the channel list
element.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-5-philipturnbull@github.com
2 years agowifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attribute
Phil Turnbull [Wed, 23 Nov 2022 15:35:42 +0000 (10:35 -0500)]
wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attribute

Validate that the IEEE80211_P2P_ATTR_CHANNEL_LIST attribute contains
enough space for a 'struct wilc_attr_oper_ch'. If the attribute is too
small then it can trigger an out-of-bounds write later in the function.

'struct wilc_attr_oper_ch' is variable sized so also check 'attr_len'
does not extend beyond the end of 'buf'.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-4-philipturnbull@github.com
2 years agowifi: wilc1000: validate length of IEEE80211_P2P_ATTR_OPER_CHANNEL attribute
Phil Turnbull [Wed, 23 Nov 2022 15:35:41 +0000 (10:35 -0500)]
wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_OPER_CHANNEL attribute

Validate that the IEEE80211_P2P_ATTR_OPER_CHANNEL attribute contains
enough space for a 'struct struct wilc_attr_oper_ch'. If the attribute is
too small then it triggers an out-of-bounds write later in the function.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-3-philipturnbull@github.com
2 years agowifi: wilc1000: validate pairwise and authentication suite offsets
Phil Turnbull [Wed, 23 Nov 2022 15:35:40 +0000 (10:35 -0500)]
wifi: wilc1000: validate pairwise and authentication suite offsets

There is no validation of 'offset' which can trigger an out-of-bounds
read when extracting RSN capabilities.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-2-philipturnbull@github.com
2 years agocan: mcba_usb: Fix termination command argument
Yasushi SHOJI [Thu, 24 Nov 2022 15:25:03 +0000 (00:25 +0900)]
can: mcba_usb: Fix termination command argument

Microchip USB Analyzer can activate the internal termination resistors
by setting the "termination" option ON, or OFF to to deactivate them.
As I've observed, both with my oscilloscope and captured USB packets
below, you must send "0" to turn it ON, and "1" to turn it OFF.

From the schematics in the user's guide, I can confirm that you must
drive the CAN_RES signal LOW "0" to activate the resistors.

Reverse the argument value of usb_msg.termination to fix this.

These are the two commands sequence, ON then OFF.

> No.     Time           Source                Destination           Protocol Length Info
>       1 0.000000       host                  1.3.1                 USB      46     URB_BULK out
>
> Frame 1: 46 bytes on wire (368 bits), 46 bytes captured (368 bits)
> USB URB
> Leftover Capture Data: a80000000000000000000000000000000000a8
>
> No.     Time           Source                Destination           Protocol Length Info
>       2 4.372547       host                  1.3.1                 USB      46     URB_BULK out
>
> Frame 2: 46 bytes on wire (368 bits), 46 bytes captured (368 bits)
> USB URB
> Leftover Capture Data: a80100000000000000000000000000000000a9

Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
Link: https://lore.kernel.org/all/20221124152504.125994-1-yashi@spacecubics.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: m_can: Add check for devm_clk_get
Jiasheng Jiang [Wed, 23 Nov 2022 06:36:51 +0000 (14:36 +0800)]
can: m_can: Add check for devm_clk_get

Since the devm_clk_get may return error,
it should be better to add check for the cdev->hclk,
as same as cdev->cclk.

Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/all/20221123063651.26199-1-jiasheng@iscas.ac.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods
Zhang Changzhong [Fri, 11 Nov 2022 12:11:23 +0000 (20:11 +0800)]
can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods

In m_can_pci_remove() and error handling path of m_can_pci_probe(),
m_can_class_free_dev() should be called to free resource allocated by
m_can_class_allocate_dev(), otherwise there will be memleak.

Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/all/1668168684-6390-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: etas_es58x: es58x_init_netdev(): free netdev when register_candev()
Zhang Changzhong [Mon, 14 Nov 2022 08:14:44 +0000 (16:14 +0800)]
can: etas_es58x: es58x_init_netdev(): free netdev when register_candev()

In case of register_candev() fails, clear
es58x_dev->netdev[channel_idx] and add free_candev(). Otherwise
es58x_free_netdevs() will unregister the netdev that has never been
registered.

Fixes: 8537257874e9 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Arunachalam Santhanam <Arunachalam.Santhanam@in.bosch.com>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/1668413685-23354-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: cc770: cc770_isa_probe(): add missing free_cc770dev()
Zhang Changzhong [Fri, 11 Nov 2022 12:09:16 +0000 (20:09 +0800)]
can: cc770: cc770_isa_probe(): add missing free_cc770dev()

Add the missing free_cc770dev() before return from cc770_isa_probe()
in the register_cc770dev() error handling case.

In addition, remove blanks before goto labels.

Fixes: 7e02e5433e00 ("can: cc770: legacy CC770 ISA bus driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/all/1668168557-6024-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>