CVE-2026-97575: Linux kernel · media: v4l2-ctrls: validate AV1 tile counts
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented in the Linux kernel to validate AV1 tile counts properly and reject invalid controls. Users should update to the patched kernel versions listed or later to mitigate this vulnerability. Since this is a kernel vulnerability, applying the official kernel updates from the vendor is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's media subsystem related to the validation of AV1 tile counts in stateless AV1 decoders has been resolved. The issue involves improper bounds checking of tile_cols and tile_rows fields, which are used as loop bounds and indices in various arrays and calculations. This could lead to out-of-bounds access or buffer overflows. The fix enforces validation to reject AV1 frame controls with tile counts exceeding defined maximums, while still accepting zero tile counts as before.
References
- ubuntu.com/security/CVE-2026-97575 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97575 (opens in a new tab)
- git.kernel.org/stable/c/c8891da0186fe4c04bccbbd7d84b01a3c941ac7a (opens in a new tab)
- git.kernel.org/stable/c/85df9fc79b07f1cc7c953f930ae7e675d0c1e820 (opens in a new tab)
- git.kernel.org/stable/c/439058ced617fbb3febc017b9e93bb7387f309e0 (opens in a new tab)
- git.kernel.org/stable/c/c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97575 (opens in a new tab)
- git.kernel.org/stable/c/1afaf85c4990fb1e3168d0d6e99246a65e526f1b (opens in a new tab)