Description
In the Linux kernel, the following vulnerability has been resolved: media: cedrus: skip invalid H.264 reference list entries Cedrus consumes H.264 ref_pic_list0/ref_pic_list1 entries from the stateless slice control and later uses their indices to look up decode->dpb[] in _cedrus_write_ref_list(). Rejecting such controls in cedrus_try_ctrl() would break existing userspace, since stateless H.264 reference lists may legitimately carry out-of-range indices for missing references. Instead, guard the actual DPB lookup in Cedrus and skip entries whose indices do not fit the fixed V4L2_H264_NUM_DPB_ENTRIES array. This keeps the fix local to the driver use site and avoids out-of-bounds reads from malformed or unsupported reference list entries.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < a6a109771c51920beb620f30778c29da823cc34caffectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 7ff6f728a2433b420bb372cb0e8a4eea3f2e1a4baffectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 1db34683b0fbbcb3bc162380c11514ea0a44e8abaffectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 2ee8327c85b3ac7b532d2d6a1e3a295d5ad7414aaffectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 0af8945fcae742d099f59f3c725eb67235953a31affectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 9924cb548ee7753a6473997949c3ec48092de0b0affectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < e53112c2de88982e66c369aee2120d5efd78df30affectede000e1fa4bdbd783149e7f97cf3be61e1c0bab8c to < 10358ea986c3c85516d1c8206486464f79d36e76affected
Linux Linux
Default version status: affected
5.10affected0 to < 5.10unaffected5.10.265 to ≤ 5.10.*unaffected5.15.216 to ≤ 5.15.*unaffected6.1.183 to ≤ 6.1.*unaffected6.6.148 to ≤ 6.6.*unaffected6.12.101 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/a6a109771c51920beb620f30778c29da823cc34c ↗
- https://git.kernel.org/stable/c/7ff6f728a2433b420bb372cb0e8a4eea3f2e1a4b ↗
- https://git.kernel.org/stable/c/1db34683b0fbbcb3bc162380c11514ea0a44e8ab ↗
- https://git.kernel.org/stable/c/2ee8327c85b3ac7b532d2d6a1e3a295d5ad7414a ↗
- https://git.kernel.org/stable/c/0af8945fcae742d099f59f3c725eb67235953a31 ↗
- https://git.kernel.org/stable/c/9924cb548ee7753a6473997949c3ec48092de0b0 ↗
- https://git.kernel.org/stable/c/e53112c2de88982e66c369aee2120d5efd78df30 ↗
- https://git.kernel.org/stable/c/10358ea986c3c85516d1c8206486464f79d36e76 ↗