media: v4l2-ctrls: validate HEVC tile counts

Answer in brief

CVE-2026-97576 records a High severity (CVSS 7.8) vulnerability in media: v4l2-ctrls: validate HEVC tile counts. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 25, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=256fa3920874b0f1f4cb79ad6766493a22187153 <400cd78a63cc647412cf069c9851bdea2818340c \|\| >=256fa3920874b0f1f4cb79ad6766493a22187153 <c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34 \|\| >=256fa3920874b0f1f4cb79ad6766493a22187153 <ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f \|\| >=256fa3920874b0f1f4cb79ad6766493a22187153 <dc694a9929f7cb9c88ef91e45eb982b7bbe5a477	400cd78a63cc647412cf069c9851bdea2818340c, c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34, ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f, dc694a9929f7cb9c88ef91e45eb982b7bbe5a477
Linux/Linuxgeneric	5.5	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 400cd78a63cc647412cf069c9851bdea2818340c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In 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.

Quoted source text, attributed separately from HOL analysis.