CVE-2026-97576
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 256fa3920874b0f1f4cb79ad6766493a22187153 < 400cd78a63cc647412cf069c9851bdea2818340c | affected |
| Linux | Linux | 256fa3920874b0f1f4cb79ad6766493a22187153 < c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34 | affected |
| Linux | Linux | 256fa3920874b0f1f4cb79ad6766493a22187153 < ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f | affected |
| Linux | Linux | 256fa3920874b0f1f4cb79ad6766493a22187153 < dc694a9929f7cb9c88ef91e45eb982b7bbe5a477 | affected |
| Linux | Linux | 5.5 | affected |
| Linux | Linux | 0 < 5.5 | unaffected |
| Linux | Linux | 6.12.111 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.53 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.7 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc3 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/400cd78a63cc647412cf069c9851bdea2818340c
- https://git.kernel.org/stable/c/c7b1ef6dc57f4e57fe27cfdd3bf82033ed91ca34
- https://git.kernel.org/stable/c/ba1023d3a6d5d244d59f20c4ba6af4879ae08a9f
- https://git.kernel.org/stable/c/dc694a9929f7cb9c88ef91e45eb982b7bbe5a477
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