CVE-2026-92514

CVE CVE-2026-92514EUVD EUVD-2026-82135Published 2026-09-17T16:10:23.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux f2a0a630b953451a59a2612ad8c29246638f0a38 <6e129c1310abfa786a510cc63e69c5ef12349048; patch: 7.3-rc1; patch: 0; patch: 6.6.157; f2a0a630b953451a59a2612ad8c29246638f0a38 <61a25b8d333e1eb2a189881d516f8d5194e26840; f2a0a630b953451a59a2612ad8c29246638f0a38 <0e8b78dabb1f156db05ffe74c6eae861167c7c21; patch: 6.1.188; 6.0; f2a0a630b953451a59a2612ad8c29246638f0a38 <a60c36d8d17f1b86705523d5eb6d290df28831e5; f2a0a630b953451a59a2612ad8c29246638f0a38 <f738c0a372d36a10dfae6dc357717c13b2aa72f4; patch: 6.12.110; f2a0a630b953451a59a2612ad8c29246638f0a38 <0ca79979384f031d710c4b3bae065dcb5d95aca3; patch: 6.18.52; patch: 7.2.6

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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