{"id":"CVE-2026-92514","revision":"258981d19c5344feb6b801e0c825a2df","records":[{"revision":"258981d19c5344feb6b801e0c825a2df","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-92514","aliases":[],"title":"RDMA/erdma: Fix CEQ tasklet use-after-free on removal","description":"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 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.","state":0,"publishedAt":"2026-09-17T16:10:23.462+00:00","modifiedAt":"2026-10-19T09:04:20.857+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/hw/erdma/erdma_eq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"0e8b78dabb1f156db05ffe74c6eae861167c7c21\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"6e129c1310abfa786a510cc63e69c5ef12349048\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"f738c0a372d36a10dfae6dc357717c13b2aa72f4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"a60c36d8d17f1b86705523d5eb6d290df28831e5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"61a25b8d333e1eb2a189881d516f8d5194e26840\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f2a0a630b953451a59a2612ad8c29246638f0a38\",\n                            \"lessThan\": \"0ca79979384f031d710c4b3bae065dcb5d95aca3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/hw/erdma/erdma_eq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/0e8b78dabb1f156db05ffe74c6eae861167c7c21","https://git.kernel.org/stable/c/6e129c1310abfa786a510cc63e69c5ef12349048","https://git.kernel.org/stable/c/f738c0a372d36a10dfae6dc357717c13b2aa72f4","https://git.kernel.org/stable/c/a60c36d8d17f1b86705523d5eb6d290df28831e5","https://git.kernel.org/stable/c/61a25b8d333e1eb2a189881d516f8d5194e26840","https://git.kernel.org/stable/c/0ca79979384f031d710c4b3bae065dcb5d95aca3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-92514","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-92514","identifiers":["CVE-2026-92514"]},"retained":false,"historicalAffected":[]}],"coverage":[]}