media: v4l2-ctrls: validate AV1 tile counts
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.158, 6.12.111, 6.18.53, 7.2.7
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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 *_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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 9de30f579980b498606a9c2440b73ae3b670771b · fixed in 1afaf85c4990fb1e3168d0d6e99246a65e526f1b; From 9de30f579980b498606a9c2440b73ae3b670771b · fixed in 85df9fc79b07f1cc7c953f930ae7e675d0c1e820; From 9de30f579980b498606a9c2440b73ae3b670771b · fixed in c8891da0186fe4c04bccbbd7d84b01a3c941ac7a; From 9de30f579980b498606a9c2440b73ae3b670771b · fixed in c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8; From 9de30f579980b498606a9c2440b73ae3b670771b · fixed in 439058ced617fbb3febc017b9e93bb7387f309e0
- Linux Linux
6.5
- KernelLinux
From 6.5.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7