{"schema":"threatline.record/2","record":{"id":"CVE-2026-98017","aliases":[],"summary":"net/sched: defer qdisc freeing after failed creation","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: defer qdisc freeing after failed creation\n\nAn RTM_NEWQDISC request can make clsact bind a populated shared ingress\nblock during ->init(), publishing an embedded mini_Qdisc to lockless\nreaders.  If the same request has an invalid TCA_RATE, estimator setup\nfails after ->init(); the unwind removes the pointer but synchronously\nfrees its containing qdisc while tc_run() may still hold it.\n\nRetire failed qdiscs through the same RCU helper as normal destruction.\nInline the synchronous free into the callback now that no direct callers\nremain.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"96a27a3e64e7c87abade03fb2ad04ed66992a89a","status":"affected","versionType":"git"},{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"6a1b49bb9fdf9e8e7aa38e8cd635c0cc4074447d","status":"affected","versionType":"git"},{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"20bf6fa34b345333971bd4464a322cce87b83f4e","status":"affected","versionType":"git"},{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"156a3bab69744e9225bb9eff8c5cc53da18d5a2e","status":"affected","versionType":"git"},{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"5bfe927c5b4b290fad529186218c728589b4b101","status":"affected","versionType":"git"},{"version":"51ab2994c387c80b45caf8b8067b3f3b97771d25","lessThan":"e6662f2100f8d33b0f4d0047c219efd6bba186ea","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","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":"7.2.7","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-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"96a27a3e64e7c87abade03fb2ad04ed66992a89a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6a1b49bb9fdf9e8e7aa38e8cd635c0cc4074447d","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"20bf6fa34b345333971bd4464a322cce87b83f4e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"156a3bab69744e9225bb9eff8c5cc53da18d5a2e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","source_modified_at":"2026-10-19T09:12:22.590Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5bfe927c5b4b290fad529186218c728589b4b101","basis":"first unaffected version stated in the CVE record"}],"cvss":7.8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00129,"percentile":0.02301,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:39.107Z","modified_at":"2026-10-19T09:12:22.590Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98017","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:12:22.590Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98017","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/96a27a3e64e7c87abade03fb2ad04ed66992a89a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6a1b49bb9fdf9e8e7aa38e8cd635c0cc4074447d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/20bf6fa34b345333971bd4464a322cce87b83f4e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/156a3bab69744e9225bb9eff8c5cc53da18d5a2e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5bfe927c5b4b290fad529186218c728589b4b101"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e6662f2100f8d33b0f4d0047c219efd6bba186ea"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:12:22.590Z","content_hash":"2210f227f379ba37f283dbcdca1b29bd61591e175ab6a94c46ce113c83f1fbd7"}}