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(parent: f85eb15) | 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>
Wed, 23 Sep 2020 10:59:59 +0000 (12:59 +0200)
commite61ab5c7d3af9dfe32b182f1e257c3a8084c8578
treef657c233129fecdab6d3a1cfb7f92d19c5dc8c7etree
parentf85eb154c2bf560f4690c7d742923d0ad6815376commit | diff
usblp: fix race between disconnect() and read()

commit 9cdabcb3ef8c24ca3a456e4db7b012befb688e73 upstream.

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>
drivers/usb/class/usblp.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git