{"schema":"threatline.record/2","record":{"id":"CVE-2026-98266","aliases":[],"summary":"ALSA: core: Fix potential UAF after asynchronous card release","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: core: Fix potential UAF after asynchronous card release\n\nUsually a sound driver releases the resources assigned to the card via\nsnd_card_free(), and it synchronizes with the whole release procedure.\nHowever, when the card is released asynchronously via\nsnd_card_free_when_closed() like USB-audio driver, the situation is\nslightly different; although the snd_card_disconnect() call at the\ndisconnection guarantees that any newer accesses will be gated, the\nin-flight tasks might be still accessing to the underlying card->dev\ndevice even after the disconnection, which would cause a\nuse-after-free in the end, as reported by fuzzers.\n\nFor addressing the bug above, this patch takes the refcount of\ncard->dev at initialization of the card object, and releases at its\ndestructor.   This assures the availability of the card->dev in its\nwhole lifecycle.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","source_modified_at":"2026-10-19T09:16:37.189Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"5c0df40aa577e405c458e44e8d458dd78407f4af","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2dec4642589a663e064e4411d92d6e8fa250d53b","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"398b21608955c9712a012355b69a39407367edc9","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"fd95e68df6fe66344161a1329cbe5e5805e7b704","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","source_modified_at":"2026-10-19T09:16:37.189Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","source_modified_at":"2026-10-19T09:16:37.189Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5c0df40aa577e405c458e44e8d458dd78407f4af","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","source_modified_at":"2026-10-19T09:16:37.189Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2dec4642589a663e064e4411d92d6e8fa250d53b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","source_modified_at":"2026-10-19T09:16:37.189Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"398b21608955c9712a012355b69a39407367edc9","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05743,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:45:29.236Z","modified_at":"2026-10-19T09:16:37.189Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98266","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:16:37.189Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98266","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/5c0df40aa577e405c458e44e8d458dd78407f4af"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/2dec4642589a663e064e4411d92d6e8fa250d53b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/398b21608955c9712a012355b69a39407367edc9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/fd95e68df6fe66344161a1329cbe5e5805e7b704"}],"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":"2026-10-19T09:16:37.189Z","content_hash":"cb2685c3207b7ca32016739b02227a57b30d1c01f2f4228c1057e219a18959d5"}}