CVE-2026-74306vfio/qat: fix f_pos race in qat_vf_resume_write()
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before 6465af0004dc1b067129a26ef44f19cdf13bbce6; from bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before d416dcefdbac90d96b22485fd93f28229ad9984b; from bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281; from bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before 4ec5e932e636896e97e4c6a8205b0ac76d52421a | CNA record |
References
- https://git.kernel.org/stable/c/6465af0004dc1b067129a26ef44f19cdf13bbce6
- https://git.kernel.org/stable/c/d416dcefdbac90d96b22485fd93f28229ad9984b
- https://git.kernel.org/stable/c/b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281
- https://git.kernel.org/stable/c/4ec5e932e636896e97e4c6a8205b0ac76d52421a
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.