CVE-2026-93052 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20507367
- published5 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
NewCVE-2026-93052 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
misc: bcm-vk: Use acquire/release for msgq_inited
bcm_vk_sync_msgq() fills the message queue information and then sets msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the message queues and their cached queue information.
atomic_set()/atomic_read() do not order those accesses. A reader can see msgq_inited set while still seeing stale queue information. Use release when publishing the initialized queues and acquire when checking the gate.
Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the gate and does not publish queue state to readers.
References
- https://security-tracker.debian.org/tracker/CVE-2026-93052
- https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041
- https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a
- https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea
- https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf
- https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7
- https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268
- https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5