CVE-2026-31473
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex
In the Linux kernel, the following vulnerability has been resolved: media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex MEDIA_REQUEST_IOC_REINIT can run concurrently with VIDIOC_REQBUFS(0) queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to use-after-free reports. We already serialize request queueing against STREAMON/OFF with req_queue_mutex. Extend that serialization to REQBUFS, and also take the same mutex in media_request_ioctl_reinit() so REINIT is in the same exclusion domain. This keeps request cleanup and queue cancellation from running in parallel for request-capable devices.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | 331242998a7ade5c2f65e14988901614629f3db5 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | 2c685e99efb3b3bd2b78699fba6b1cf321975db0 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | 585fd9a2063dacce8b2820f675ef23d5d17434c5 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | 1a0d9083c24fbd5d22f7100f09d11e4d696a5f01 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | d8549a453d5bdc0a71de66ad47a1106703406a56 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | 72b9e81e0203f03c40f3adb457f55bd4c8eb112d | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | cf2023e84f0888f96f4b65dc0804e7f3651969c1 | Unavailable | None listed |
| 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 | affected | git | bef4f4a88b73e4cc550d25f665b8a9952af22773 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.20 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.131 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.80 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.21 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.11 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |