CVE-2026-74306
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.
Affected versions
Linux kernel versions
6.10
and later are affected. Fixed in
6.12.97,
6.18.40,
7.1.5,
7.2-rc1
and their respective stable series.
References
4 totalFrequently asked questions
-
What is CVE-2026-74306?
CVE-2026-74306 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.97, 6.18.40, 7.1.5 and others. CVE-2026-74306 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-74306?
Yes. CVE-2026-74306 has been patched. Fixed versions include 6.12.97, 6.18.40, 7.1.5 and others. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-74306 actively exploited?
No. CVE-2026-74306 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.