{"id":"CVE-2026-68318","revision":"64b9adbaf109402ab7ae69cc58f4c217","records":[{"revision":"64b9adbaf109402ab7ae69cc58f4c217","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68318","aliases":[],"title":"pds_core: fix use-after-free on workqueue during remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: fix use-after-free on workqueue during remove\n\nIn pdsc_remove(), the workqueue is destroyed before pdsc_teardown()\nis called. This ordering allows two paths to queue work on the\ndestroyed workqueue:\n\n1. If pdsc_teardown() -> pdsc_devcmd_reset() times out, the error\n   path in pdsc_devcmd_locked() queues health_work.\n\n2. A NotifyQ event can trigger the ISR and queue work before free_irq()\n   is called in pdsc_teardown().\n\nFix by moving destroy_workqueue() after pdsc_teardown() so the\nworkqueue outlives every queuer; destroy_workqueue() then flushes any\nwork still pending.\n\nDraining the queued work also requires ordering the teardown so the\nresources that work touches are freed last:\n\n  - In pdsc_qcq_free(), after freeing the interrupt, cancel_work_sync()\n    the queue's work and only then clear qcq->intx, so\n    pdsc_process_adminq()'s read of qcq->intx for interrupt-credit\n    return cannot race with the clear.\n\n  - Free adminqcq before notifyqcq: the shared adminq ISR is released\n    when adminqcq is freed, and the adminq work accesses notifyqcq, so\n    both must be stopped before notifyqcq is freed.","state":0,"publishedAt":"2026-08-10T12:02:53.197+00:00","modifiedAt":"2026-10-21T12:43:51.063+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/net/ethernet/amd/pds_core/core.c\",\n                        \"drivers/net/ethernet/amd/pds_core/main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"01ba61b55b2041a39c54aefb3153c770dd59a0ef\",\n                            \"lessThan\": \"bac237c2aedb8225bfd2317c1361bbfce1e419ca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"01ba61b55b2041a39c54aefb3153c770dd59a0ef\",\n                            \"lessThan\": \"224214eb4182ff20a665b615a90b66017539dd75\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"01ba61b55b2041a39c54aefb3153c770dd59a0ef\",\n                            \"lessThan\": \"9e0f80fac50ab95dd75537c8ecaf5051d01f19b5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"01ba61b55b2041a39c54aefb3153c770dd59a0ef\",\n                            \"lessThan\": \"ecc7a7d7569ec1d6a61e18372696b9de97635156\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"01ba61b55b2041a39c54aefb3153c770dd59a0ef\",\n                            \"lessThan\": \"0ad134881508c36b65c1a8864f8bec53adbd3327\",\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/net/ethernet/amd/pds_core/core.c\",\n                        \"drivers/net/ethernet/amd/pds_core/main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.101\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.42\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.6\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/bac237c2aedb8225bfd2317c1361bbfce1e419ca","https://git.kernel.org/stable/c/224214eb4182ff20a665b615a90b66017539dd75","https://git.kernel.org/stable/c/9e0f80fac50ab95dd75537c8ecaf5051d01f19b5","https://git.kernel.org/stable/c/ecc7a7d7569ec1d6a61e18372696b9de97635156","https://git.kernel.org/stable/c/0ad134881508c36b65c1a8864f8bec53adbd3327"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68318","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68318","identifiers":["CVE-2026-68318"]},"retained":false,"historicalAffected":[]}],"coverage":[]}