---
id: CVE-2026-97575
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  media: v4l2-ctrls: validate AV1 tile counts

  The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop
  bounds and as indices into the mi_*_starts[] and *…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  media: v4l2-ctrls: validate AV1 tile counts

  The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop
  bounds and as indices into the mi_*_starts[] and *…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 9de30f579980b498606a9c2440b73ae3b670771b <
    85df9fc79b07f1cc7c953f930ae7e675d0c1e820
  - >-
    Linux >= 9de30f579980b498606a9c2440b73ae3b670771b <
    c8891da0186fe4c04bccbbd7d84b01a3c941ac7a
  - >-
    Linux >= 9de30f579980b498606a9c2440b73ae3b670771b <
    c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8
  - >-
    Linux >= 9de30f579980b498606a9c2440b73ae3b670771b <
    439058ced617fbb3febc017b9e93bb7387f309e0
  - Linux 6.5
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T15:17:59.567'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97575'
references:
  - url: 'https://git.kernel.org/stable/c/439058ced617fbb3febc017b9e93bb7387f309e0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/85df9fc79b07f1cc7c953f930ae7e675d0c1e820'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c8891da0186fe4c04bccbbd7d84b01a3c941ac7a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T11:06:38.910Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

media: v4l2-ctrls: validate AV1 tile counts

The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop
bounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[]
arrays, as the divisor for context_update_tile_id, and their product
bounds the per-tile descriptor buffers, but std_validate_compound() does
not bound these u8 fields. Reject a V4L2_CTRL_TYPE_AV1_FRAME whose
tile_cols or tile_rows exceeds V4L2_AV1_MAX_TILE_COLS / _ROWS, or whose
product exceeds V4L2_AV1_MAX_TILE_COUNT. A zero tile count is left to the
consuming driver so the zero-initialised control that existing userspace
submits is still accepted.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.