media: v4l2-ctrls: validate HEVC tile counts

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97576
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:08 UTC
Updated2026-09-25 15:17:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: v4l2-ctrls: validate HEVC tile counts The stateless HEVC decoders read num_tile_columns_minus1 + 1 entries from column_width_minus1[] and num_tile_rows_minus1 + 1 from row_height_minus1[] and use them as tile-loop bounds, but std_validate_compound() does not bound these u8 counts. Reject a V4L2_CTRL_TYPE_HEVC_PPS with tiling enabled whose tile counts exceed the uAPI array capacity, mirroring the existing compound-control range checks.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001630000 probability, percentile 0.049140000 (date 2026-09-27)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 256fa3920874b0f1f4cb79ad6766493a22187153 400cd78a63cc647412cf069c9851bdea2818340c git Not specified
CNA Linux Linux affected 256fa3920874b0f1f4cb79ad6766493a22187153 c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34 git Not specified
CNA Linux Linux affected 256fa3920874b0f1f4cb79ad6766493a22187153 ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f git Not specified
CNA Linux Linux affected 256fa3920874b0f1f4cb79ad6766493a22187153 dc694a9929f7cb9c88ef91e45eb982b7bbe5a477 git Not specified
CNA Linux Linux affected 5.5 Not specified
CNA Linux Linux unaffected 5.5 semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/dc694a9929f7cb9c88ef91e45eb982b7bbe5a477 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/400cd78a63cc647412cf069c9851bdea2818340c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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