CVE-2026-92514 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-LINUX612-20506766
- published5 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
NewCVE-2026-92514 (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:
RDMA/erdma: Fix CEQ tasklet use-after-free on removal
Each CEQ interrupt handler only schedules eqc->tasklet. The tasklet calls erdma_ceq_completion_handler(), which reads the DMA-coherent EQ ring through get_next_valid_eqe() and updates eq->dbrec through notify_eq().
erdma_ceqs_uninit() frees each CEQ IRQ and then destroys its EQ. free_irq() prevents another hard IRQ and waits for an in-flight handler, but it does not drain a tasklet that the handler already scheduled. The tasklet can therefore access eq->qbuf or eq->dbrec after erdma_eq_destroy() frees them.
Clearing ceq_cb->ready does not synchronize with a tasklet that already passed the check at the start of erdma_ceq_completion_handler().
Kill the tasklet after free_irq(), when no handler can schedule it again, and before erdma_ceq_uninit_one() releases the EQ buffers.
References
- https://security-tracker.debian.org/tracker/CVE-2026-92514
- https://git.kernel.org/stable/c/0ca79979384f031d710c4b3bae065dcb5d95aca3
- https://git.kernel.org/stable/c/0e8b78dabb1f156db05ffe74c6eae861167c7c21
- https://git.kernel.org/stable/c/61a25b8d333e1eb2a189881d516f8d5194e26840
- https://git.kernel.org/stable/c/6e129c1310abfa786a510cc63e69c5ef12349048
- https://git.kernel.org/stable/c/a60c36d8d17f1b86705523d5eb6d290df28831e5
- https://git.kernel.org/stable/c/f738c0a372d36a10dfae6dc357717c13b2aa72f4