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| author | Youngjun Lee <yjjuny.lee@samsung.com> | 2025-06-10 21:41:07 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:41:41 +0200 |
| commit | 6d4a7c0b296162354b6fc759a1475b9d57ddfaa6 (patch) | |
| tree | 52ead11a9c6dede06b42cfe6b998e059b9d9a66c /tools/perf/scripts/python/stackcollapse.py | |
| parent | a181b228b37a6a5625dad2bb4265bb7abb673e9f (diff) | |
media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()
commit 782b6a718651eda3478b1824b37a8b3185d2740c upstream.
The buffer length check before calling uvc_parse_format() only ensured
that the buffer has at least 3 bytes (buflen > 2), buf the function
accesses buffer[3], requiring at least 4 bytes.
This can lead to an out-of-bounds read if the buffer has exactly 3 bytes.
Fix it by checking that the buffer has at least 4 bytes in
uvc_parse_format().
Signed-off-by: Youngjun Lee <yjjuny.lee@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Fixes: c0efd232929c ("V4L/DVB (8145a): USB Video Class driver")
Cc: stable@vger.kernel.org
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20250610124107.37360-1-yjjuny.lee@samsung.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions