CVE Catalog

CVE-2026-74614

HighCVSS 8.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

4th percentile - higher than 4% of all known CVEs

Summary

In the Linux kernel, in virtio vsock, the RX, TX, and event workers read their virtqueue before checking the run flag, which can lead to use of a deleted queue after device suspend/resume.

Risk Assessment

Potential crashes or incorrect behavior after device suspend/resume. This could lead to data loss or system hang.

Recommendation

Apply a kernel update that includes the fix reading the queue under mutex after checking the flag.

Other vulnerabilities in Linux kernel

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS