{"id":"CVE-2026-92514","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/erdma: Fix CEQ tasklet use-after-free on removal\n\nEach CEQ interrupt handler only schedules eqc->tasklet","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/erdma: Fix CEQ tasklet use-after-free on removal\n\nEach CEQ interrupt handler only schedules eqc->tasklet. The tasklet calls\nerdma_ceq_completion_handler(), which r…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < 0e8b78dabb1f156db05ffe74c6eae861167c7c21","Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < 6e129c1310abfa786a510cc63e69c5ef12349048","Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < f738c0a372d36a10dfae6dc357717c13b2aa72f4","Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < a60c36d8d17f1b86705523d5eb6d290df28831e5","Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < 61a25b8d333e1eb2a189881d516f8d5194e26840","Linux >= f2a0a630b953451a59a2612ad8c29246638f0a38 < 0ca79979384f031d710c4b3bae065dcb5d95aca3","Linux 6.0"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:54.243","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92514","references":[{"url":"https://git.kernel.org/stable/c/0ca79979384f031d710c4b3bae065dcb5d95aca3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0e8b78dabb1f156db05ffe74c6eae861167c7c21","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/61a25b8d333e1eb2a189881d516f8d5194e26840","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e129c1310abfa786a510cc63e69c5ef12349048","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a60c36d8d17f1b86705523d5eb6d290df28831e5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f738c0a372d36a10dfae6dc357717c13b2aa72f4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.778Z","epss":0.00205,"epssPercentile":0.10893,"slug":"CVE-2026-92514","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/erdma: Fix CEQ tasklet use-after-free on removal\n\nEach CEQ interrupt handler only schedules eqc->tasklet. The tasklet calls\nerdma_ceq_completion_handler(), which reads the DMA-coherent EQ ring\nthrough get_next_valid_eqe() and updates eq->dbrec through notify_eq().\n\nerdma_ceqs_uninit() frees each CEQ IRQ and then destroys its EQ.\nfree_irq() prevents another hard IRQ and waits for an in-flight handler,\nbut it does not drain a tasklet that the handler already scheduled. The\ntasklet can therefore access eq->qbuf or eq->dbrec after\nerdma_eq_destroy() frees them.\n\nClearing ceq_cb->ready does not synchronize with a tasklet that already\npassed the check at the start of erdma_ceq_completion_handler().\n\nKill the tasklet after free_irq(), when no handler can schedule it again,\nand before erdma_ceq_uninit_one() releases the EQ buffers.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}