Description
In the Linux kernel, the following vulnerability has been resolved:
vfio/qat: fix f_pos race in qat_vf_resume_write()
qat_vf_resume_write() checks filp->f_pos before taking migf->lock, but copies into the migration-state buffer after taking the lock and re-reading the shared file position.
Two concurrent writers could therefore pass the bounds check with the old offset, then have the second writer copy after the first advanced f_pos, writing past the end of the migration-state buffer.
Take migf->lock before doing the boundary checks.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= bb208810b1abf1c84870cfbe1cc9cf1a1d35c607, < 6465af0004dc1b067129a26ef44f19cdf13bbce6; >= bb208810b1abf1c84870cfbe1cc9cf1a1d35c607, < d416dcefdbac90d96b22485fd93f28229ad9984b; >= bb208810b1abf1c84870cfbe1cc9cf1a1d35c607, < b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281; >= bb208810b1abf1c84870cfbe1cc9cf1a1d35c607, < 4ec5e932e636896e97e4c6a8205b0ac76d52421a |
| Linux | Linux | 6.10 |
References
Timeline
- Published
- Aug 15, 2026
- Last modified
- Aug 17, 2026
- NVD status
- Received