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| author |   Ricardo Ribalda <ribalda@chromium.org> | 2024-10-22 08:30:30 +0000 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2024-12-19 14:44:43 +0000 |
| commit | a67f75c2b5ecf534eab416ce16c11fe780c4f8f6 (patch) | |
| tree | f011f28e3a943ded95f3797c47f58ab0a39af78d /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | media: uvcvideo: Fix double free in error path (diff) | |
| download | wireguard-linux-a67f75c2b5ecf534eab416ce16c11fe780c4f8f6.tar.xz wireguard-linux-a67f75c2b5ecf534eab416ce16c11fe780c4f8f6.zip | |
media: uvcvideo: Fix deadlock during uvc_probe
If uvc_probe() fails, it can end up calling uvc_status_unregister() before
uvc_status_init() is called.
Fix this by checking if dev->status is NULL or not in
uvc_status_unregister().
Reported-by: syzbot+9446d5e0d25571e6a212@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-media/20241020160249.GD7770@pendragon.ideasonboard.com/T/#m506744621d72a2ace5dd2ab64055be9898112dbd
Fixes: c5fe3ed618f9 ("media: uvcvideo: Avoid race condition during unregister")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20241022-race-unreg-v1-1-2212f364d9de@chromium.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions