Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before 331242998a7ade5c2f65e14988901614629f3db5; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before 2c685e99efb3b3bd2b78699fba6b1cf321975db0; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before 585fd9a2063dacce8b2820f675ef23d5d17434c5; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before 1a0d9083c24fbd5d22f7100f09d11e4d696a5f01; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before d8549a453d5bdc0a71de66ad47a1106703406a56; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before 72b9e81e0203f03c40f3adb457f55bd4c8eb112d; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before cf2023e84f0888f96f4b65dc0804e7f3651969c1; affected 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 before bef4f4a88b73e4cc550d25f665b8a9952af22773 |
| Linux / Linux | affected 4.20; unaffected 0 before 4.20; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.168 through 6.1.*; unaffected 6.6.131 through 6.6.*; unaffected 6.12.80 through 6.12.*; unaffected 6.18.21 through 6.18.*; unaffected 6.19.11 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5
- https://git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0
- https://git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5
- https://git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01
- https://git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56
- https://git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112d
- https://git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1
- https://git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773
ADP enrichment
No English description supplied.
No references supplied.