media: cedrus: skip invalid H.264 reference list entries

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Summary

CVECVE-2026-68229
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:11 UTC
Updated2026-08-10 13:20:11 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c 2ee8327c85b3ac7b532d2d6a1e3a295d5ad7414a git Not specified
CNA Linux Linux affected e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c 0af8945fcae742d099f59f3c725eb67235953a31 git Not specified
CNA Linux Linux affected e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c 9924cb548ee7753a6473997949c3ec48092de0b0 git Not specified
CNA Linux Linux affected e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c e53112c2de88982e66c369aee2120d5efd78df30 git Not specified
CNA Linux Linux affected e000e1fa4bdbd783149e7f97cf3be61e1c0bab8c 10358ea986c3c85516d1c8206486464f79d36e76 git Not specified
CNA Linux Linux affected 5.10 Not specified
CNA Linux Linux unaffected 5.10 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2ee8327c85b3ac7b532d2d6a1e3a295d5ad7414a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0af8945fcae742d099f59f3c725eb67235953a31 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9924cb548ee7753a6473997949c3ec48092de0b0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e53112c2de88982e66c369aee2120d5efd78df30 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/10358ea986c3c85516d1c8206486464f79d36e76 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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