CVE-2026-74614
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.
How to fix
- Linux Linux941329ce14c5f481223a10d1d4c8b57ea7f3048a, 29dd10583bf9d2744cd84b862e4257c0a5699570, a1fb0c5b8a7c2753758aeced40971f99449dde0c, eae099c764c7ebdb842eb1f638913e310bdd6513, bd43a7ec668be428265b3209eb43647aedcf720a, 1cecb4202afdbeddcf29d59baf596ac6ab753f7f, ebac8f6b1ef0e9278afe204b8692a7479988dace, 5.15.216 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 762c251c7f5c4ee5bef71460c6e822ed293fd69f ≤ v < 941329ce14c5f481223a10d1d4c8b57ea7f3048a, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < 29dd10583bf9d2744cd84b862e4257c0a5699570, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < a1fb0c5b8a7c2753758aeced40971f99449dde0c, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < eae099c764c7ebdb842eb1f638913e310bdd6513, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < bd43a7ec668be428265b3209eb43647aedcf720a, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < 1cecb4202afdbeddcf29d59baf596ac6ab753f7f, bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c ≤ v < ebac8f6b1ef0e9278afe204b8692a7479988dace, 5.15.138 ≤ v < 5.15.216, 5.19 | 941329ce14c5f481223a10d1d4c8b57ea7f3048a, 29dd10583bf9d2744cd84b862e4257c0a5699570, a1fb0c5b8a7c2753758aeced40971f99449dde0c, eae099c764c7ebdb842eb1f638913e310bdd6513, bd43a7ec668be428265b3209eb43647aedcf720a, 1cecb4202afdbeddcf29d59baf596ac6ab753f7f, ebac8f6b1ef0e9278afe204b8692a7479988dace, 5.15.216 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.