Description
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.
CVSS 8.4EPSS 0.14200000000000002%Risk 0.85
View source- Published
- 2026-08-22 16:16:34
- Affected versions
- unknown
- Type
- Kernel
- Last modified
- 2026-08-25 06:18:39
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H