{"schema":"threatline.record/2","record":{"id":"CVE-2026-93821","aliases":[],"summary":"PCI: altera: Protect root bus removal with rescan lock","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: altera: Protect root bus removal with rescan lock\n\nHold the pci_rescan_remove_lock lock while stopping and removing a root bus\nto avoid racing with concurrent rescan or hotplug operations triggered via\nsysfs.  Such races may lead to use-after-free issues or system crashes.\n\n[bhelgaas: commit log]","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","source_modified_at":"2026-10-03T10:57:52.467Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"cf9d84d1b6a7c3f3780c043df220a7e9e38137eb","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"fc462f1bdeaea9789928cbfdf5e069ee559c7642","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"c0cd65906e5f7e293ef2568c9524cc0a918333c3","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"7cbb8f2750d91e64caff89e164ac8280bb80bedc","status":"affected","versionType":"git"},{"version":"ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22","lessThan":"a8759c8ac48c0419f5899e95a6ffc611b07c965b","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","source_modified_at":"2026-10-03T10:57:52.467Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.3","status":"affected"},{"version":"0","lessThan":"5.3","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","source_modified_at":"2026-10-03T10:57:52.467Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","source_modified_at":"2026-10-03T10:57:52.467Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","source_modified_at":"2026-10-03T10:57:52.467Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"7cbb8f2750d91e64caff89e164ac8280bb80bedc","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06356,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:02:59.826Z","modified_at":"2026-10-03T10:57:52.467Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93821","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:57:52.467Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93821","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/cf9d84d1b6a7c3f3780c043df220a7e9e38137eb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/fc462f1bdeaea9789928cbfdf5e069ee559c7642"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-03T10:57:52.467Z","content_hash":"b846f975a679e97f2db9f0d72007cd4e67c336d1f2153c0f7f5749daf56401ea"}}