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(parent: d6c57a8) | patch
usblp: fix race between disconnect() and read()
authorOliver Neukum <oneukum@suse.com>
Thu, 17 Sep 2020 10:34:27 +0000 (12:34 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Sep 2020 16:45:30 +0000 (18:45 +0200)
commit25d9d8e02da73996ee94a0afd5282371da75ebb7
tree2c7043613f45b20b4f325f66855618056407f2b4tree | snapshot
parentd6c57a84d369637f05ca734d500fc3f51db7b19acommit | diff
usblp: fix race between disconnect() and read()

read() needs to check whether the device has been
disconnected before it tries to talk to the device.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+be5b5f86a162a6c281e6@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20200917103427.15740-1-oneukum@suse.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/usblp.c diff | blob | history
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