{"id":"CVE-2026-74614","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74614","summary":"vsock/virtio: read virtqueues under worker locks","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: read virtqueues under worker locks\n\nCommit bd50c5dc182b (\"vsock/virtio: add support for device\nsuspend/resume\") made the *_run flags transition from false to true when\nrestore installs replacement virtqueues.  The RX, TX and event workers\nread their virtqueue before locking and checking the corresponding flag,\nso a worker delayed across freeze and restore can observe the replacement\nqueue's running state while retaining a pointer to the deleted queue.\n\nRead each virtqueue under its mutex after checking the run flag, keeping\nthe pointer and state in the same queue generation.","published":"2026-08-22T15:31:59.800Z","modified":"2026-08-24T11:47:11.573379415Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.15.216"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1cecb4202afdbeddcf29d59baf596ac6ab753f7f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/29dd10583bf9d2744cd84b862e4257c0a5699570"},{"type":"WEB","url":"https://git.kernel.org/stable/c/941329ce14c5f481223a10d1d4c8b57ea7f3048a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a1fb0c5b8a7c2753758aeced40971f99449dde0c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd43a7ec668be428265b3209eb43647aedcf720a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eae099c764c7ebdb842eb1f638913e310bdd6513"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ebac8f6b1ef0e9278afe204b8692a7479988dace"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74614.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74614"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T11:47:11.573379415Z"}}