CVE-2026-68204
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: vivid: check for vb2_is_busy() when toggling caps
In the Linux kernel, the following vulnerability has been resolved: media: vivid: check for vb2_is_busy() when toggling caps The vivid_update_format_cap/out() functions must only be called if the capture/output queue are not busy. But for the controls that select the CROP/COMPOSE/SCALE capability that is not checked. Only when streaming starts will they be set to 'grabbed' and it is impossible to change the control, but between REQBUFS and STREAMON you are still allowed to set these controls. Since vivid_update_format_cap/out will change the format, this can cause unexpected results. Besides adding these checks, also add a WARN_ON in vivid_update_format_cap/out() if the queue is busy. I'm 90% certain that this is the cause of this syzbot bug: https://syzkaller.appspot.com/bug?extid=dac8f5eaa46837e97b89 But since we never have reproducers, it is hard to be certain. In any case, these checks are needed regardless.
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) |
|---|---|---|---|---|---|
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | 0a820f03727b509b887f3216a574062948761f34 | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | bbc96bc75de0fcd9bb6ac48798b206e3b09ec865 | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | 6a5bc8aea111ccbca71ef2b9c868d5c81f2e89de | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | a9cd0e8fb0b21faaa71199d9d3feb305c18ff576 | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | abaec6747304581f8d4a9936352fa10e13325f07 | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | 492c97cb50feaa60ccd7792d3d6b904ed8ec61bf | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | daf2d92669b4a659d805d88d811161c70cd325ee | Unavailable | None listed |
| 73c3f48230cda01402ae189b05d56f1f7e0d53c9 | affected | git | c2d1a2130c93f6d758af58590b86b2254c7a1dec | 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) |
|---|---|---|---|---|---|
| 3.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.18 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |