CVE-2026-74614
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b ("vsock/virtio: add support for device suspend/resume") made the *_run flags transition from false to true when restore installs replacement virtqueues. The RX, TX and event workers read their virtqueue before locking and checking the corresponding flag, so a worker delayed across freeze and restore can observe the replacement queue's running state while retaining a pointer to the deleted queue. Read each virtqueue under its mutex after checking the run flag, keeping the pointer and state in the same queue generation.
Affected versions
Linux kernel versions
5.15.138,
5.19
and later are affected. Fixed in
5.15.216,
6.1.183,
6.6.152,
6.12.104,
6.18.45,
7.1.9,
7.2
and their respective stable series.
References
7 totalFrequently asked questions
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What is CVE-2026-74614?
CVE-2026-74614 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15.138 onward and has been patched in 5.15.216, 6.1.183, 6.6.152 and others. CVE-2026-74614 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74614?
Yes. CVE-2026-74614 has been patched. Fixed versions include 5.15.216, 6.1.183, 6.6.152 and others. If you are running Linux kernel 5.15.138 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74614 actively exploited?
No. CVE-2026-74614 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.