{"schema":"threatline.record/2","record":{"id":"CVE-2026-98603","aliases":[],"summary":"ovpn: replace bind when clearing stale local source","details":"In the Linux kernel, the following vulnerability has been resolved:\n\novpn: replace bind when clearing stale local source\n\nThe UDP output fallback clears bind->local in place when the remembered\nsource address is no longer usable. The bind is RCU-published and read\nlocklessly by concurrent TX, so an IPv6 reader can observe a torn\naddress.\n\nRetry the route lookup with source address autoselection without\nmodifying the bind. After a successful lookup, revalidate the bind and\nroute key under peer->lock, reset the dst cache, and best-effort publish\na replacement bind with a wildcard local address.\n\nDo not cache the resolved dst when clearing the local source. Replacing\nthe source invalidates all per-CPU cache entries, while\ndst_cache_set_ip4 and dst_cache_set_ip6 update only the current CPU\nslot. The current packet can still use the resolved route; if bind\nallocation fails, a later cache miss retries the repair.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98603","source_modified_at":"2026-10-19T09:22:30.537Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","lessThan":"c44a04722f7dae9a45a101b8e100931ab59f1c18","status":"affected","versionType":"git"},{"version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","lessThan":"72bd1bea37ea2c8553938f086bf48ccd2147dfe1","status":"affected","versionType":"git"},{"version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","lessThan":"7d8104988f423572df1f3347ce578037b1043f34","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98603","source_modified_at":"2026-10-19T09:22:30.537Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","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-2026-98603","source_modified_at":"2026-10-19T09:22:30.537Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"72bd1bea37ea2c8553938f086bf48ccd2147dfe1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98603","source_modified_at":"2026-10-19T09:22:30.537Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7d8104988f423572df1f3347ce578037b1043f34","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09045,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:19:16.215Z","modified_at":"2026-10-19T09:22:30.537Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98603","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:22:30.537Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98603","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/c44a04722f7dae9a45a101b8e100931ab59f1c18"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/72bd1bea37ea2c8553938f086bf48ccd2147dfe1"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7d8104988f423572df1f3347ce578037b1043f34"}],"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":"2026-10-19T09:22:30.537Z","content_hash":"297821820f7a6b24e2bf4f6e33eec4fbfce0dc166cafa7f0477a36975eccafea"}}