{"schema":"threatline.record/2","record":{"id":"CVE-2026-99167","aliases":[],"summary":"net/sched: fix use-after-free in __tcf_action_put()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fix use-after-free in __tcf_action_put()\n\n__tcf_action_put() decrements the reference count before decrementing the\nbinding count. Another thread can free the action between these operations,\ncausing the binding-count update to access freed memory. KASAN reports it\nas:\n\n  BUG: KASAN: slab-use-after-free in __tcf_action_put+0x327/0x340\n  Write of size 4 at addr ff11000000d46420 by task tc-put-pause/64\n\nHold the action IDR mutex across both counter updates and IDR removal,\nkeeping cleanup outside the lock.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99167","source_modified_at":"2026-10-28T10:35:18.850Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"16af6067392c40e454e49eec834843ab03643d96","lessThan":"2465d27ef90de9105c2bffb6c35f8ce08918e642","status":"affected","versionType":"git"},{"version":"16af6067392c40e454e49eec834843ab03643d96","lessThan":"2e012e431aa271ef3c84206f48854f539c03bff0","status":"affected","versionType":"git"},{"version":"16af6067392c40e454e49eec834843ab03643d96","lessThan":"7b16eb911091aae237a8673da94e4dfb9cd21d54","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99167","source_modified_at":"2026-10-28T10:35:18.850Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.19","status":"affected"},{"version":"0","lessThan":"4.19","status":"unaffected","versionType":"semver"},{"version":"6.18.59","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.13","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-2026-99167","source_modified_at":"2026-10-28T10:35:18.850Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"2465d27ef90de9105c2bffb6c35f8ce08918e642","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99167","source_modified_at":"2026-10-28T10:35:18.850Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"2e012e431aa271ef3c84206f48854f539c03bff0","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99167","source_modified_at":"2026-10-28T10:35:18.850Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"7b16eb911091aae237a8673da94e4dfb9cd21d54","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T10:35:18.850Z","modified_at":"2026-10-28T10:35:18.850Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99167","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T10:35:18.850Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/2465d27ef90de9105c2bffb6c35f8ce08918e642"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/2e012e431aa271ef3c84206f48854f539c03bff0"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7b16eb911091aae237a8673da94e4dfb9cd21d54"}],"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":"2026-10-28T10:35:18.850Z","content_hash":"90cb75449d66d7a10290e632156729299c49596d683b457c048b7d6378691aef"}}