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(parent: d8e5a26) | patch
udp: Fix a data-race around sysctl_udp_l3mdev_accept.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:43 +0000 (10:26 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 20 Jul 2022 09:14:49 +0000 (10:14 +0100)
commit4bbe5165ee91c921eb83bcc24b87d06342cecfc7
treef799bca36a06cccad7bc3b26c6bd645b01e9aac6tree | snapshot
parentd8e5a267ab892ecf67172e04d43fa78e128ea88bcommit | diff
udp: Fix a data-race around sysctl_udp_l3mdev_accept.

While reading sysctl_udp_l3mdev_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 51e08476ae24 ("net: Avoid receiving packets with an l3mdev on unbound UDP sockets")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/udp.h diff | blob | history
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