{"id":"CVE-2026-93052","summary":"misc: bcm-vk: Use acquire/release for msgq_inited","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers.","modified":"2026-09-19T03:47:26.779210635Z","published":"2026-09-17T16:10:41.716Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93052.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93052.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93052"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"111d746bb4767ad476f80fe49067e3df3d9a9375"},{"fixed":"bab66a9e30e39a06f3463b19f8c704386dfd5268"},{"fixed":"679cfada6868723ccf162ec3b78c7402ff2405bf"},{"fixed":"f7a8f4cbc8cede0be55220367dc52b126e2d39e5"},{"fixed":"1df3926ed8771edf286ff753428b243f334e6041"},{"fixed":"a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"},{"fixed":"4984277bc43f84d7506346a09b29af138246d54a"},{"fixed":"61b101c6a150057b6d512421ed108aed16e822ea"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93052.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.12.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93052.json"}}],"schema_version":"1.9.0"}