{"api_version":"1","generated_at":"2026-10-24T09:55:06+00:00","cve":"CVE-2026-98604","urls":{"html":"https://cve.report/CVE-2026-98604","api":"https://cve.report/api/cve/CVE-2026-98604.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98604","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98604"},"summary":{"title":"ovpn: replace bind when learning local endpoint","description":"In the Linux kernel, the following vulnerability has been resolved:\n\novpn: replace bind when learning local endpoint\n\nstruct ovpn_bind is published through peer->bind with RCU, but local\nendpoint learning updates bind->local in place under peer->lock. UDP TX\nreads the field without that lock. In particular, a concurrent IPv6\nupdate can therefore result in a torn address read.\n\nUse ovpn_peer_reset_sockaddr to publish a replacement bind when learning\na new local endpoint, just as a remote endpoint change does. Preserve\nthe current remote address and reset the dst cache only after the new\nbind has been published successfully.\n\nTrack remote endpoint changes separately so that float notification and\ntransport-address rehashing remain limited to actual peer floats.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:13","updated_at":"2026-10-19 10:19:22"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e283009151d3d131447c2edda500199c5fda5f72","name":"https://git.kernel.org/stable/c/e283009151d3d131447c2edda500199c5fda5f72","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/aea934a221ec6a867221e5b765f65f1857befd53","name":"https://git.kernel.org/stable/c/aea934a221ec6a867221e5b765f65f1857befd53","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/21dbc9f4d0bdd3b22f91beabc7840064bf11594f","name":"https://git.kernel.org/stable/c/21dbc9f4d0bdd3b22f91beabc7840064bf11594f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98604","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98604","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0281c1d3732d1ec084fa1e06d1767d33e1a570e 21dbc9f4d0bdd3b22f91beabc7840064bf11594f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0281c1d3732d1ec084fa1e06d1767d33e1a570e e283009151d3d131447c2edda500199c5fda5f72 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0281c1d3732d1ec084fa1e06d1767d33e1a570e aea934a221ec6a867221e5b765f65f1857befd53 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.55 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.9 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ovpn/peer.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"21dbc9f4d0bdd3b22f91beabc7840064bf11594f","status":"affected","version":"f0281c1d3732d1ec084fa1e06d1767d33e1a570e","versionType":"git"},{"lessThan":"e283009151d3d131447c2edda500199c5fda5f72","status":"affected","version":"f0281c1d3732d1ec084fa1e06d1767d33e1a570e","versionType":"git"},{"lessThan":"aea934a221ec6a867221e5b765f65f1857befd53","status":"affected","version":"f0281c1d3732d1ec084fa1e06d1767d33e1a570e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ovpn/peer.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.55","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.55","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.9","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\novpn: replace bind when learning local endpoint\n\nstruct ovpn_bind is published through peer->bind with RCU, but local\nendpoint learning updates bind->local in place under peer->lock. UDP TX\nreads the field without that lock. In particular, a concurrent IPv6\nupdate can therefore result in a torn address read.\n\nUse ovpn_peer_reset_sockaddr to publish a replacement bind when learning\na new local endpoint, just as a remote endpoint change does. Preserve\nthe current remote address and reset the dst cache only after the new\nbind has been published successfully.\n\nTrack remote endpoint changes separately so that float notification and\ntransport-address rehashing remain limited to actual peer floats."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:22:31.480Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/21dbc9f4d0bdd3b22f91beabc7840064bf11594f"},{"url":"https://git.kernel.org/stable/c/e283009151d3d131447c2edda500199c5fda5f72"},{"url":"https://git.kernel.org/stable/c/aea934a221ec6a867221e5b765f65f1857befd53"}],"title":"ovpn: replace bind when learning local endpoint","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98604","datePublished":"2026-10-18T15:19:17.227Z","dateReserved":"2026-09-25T10:25:14.359Z","dateUpdated":"2026-10-19T09:22:31.480Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:13","lastModifiedDate":"2026-10-19 10:19:22","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98604","Ordinal":"1","Title":"ovpn: replace bind when learning local endpoint","CVE":"CVE-2026-98604","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98604","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\novpn: replace bind when learning local endpoint\n\nstruct ovpn_bind is published through peer->bind with RCU, but local\nendpoint learning updates bind->local in place under peer->lock. UDP TX\nreads the field without that lock. In particular, a concurrent IPv6\nupdate can therefore result in a torn address read.\n\nUse ovpn_peer_reset_sockaddr to publish a replacement bind when learning\na new local endpoint, just as a remote endpoint change does. Preserve\nthe current remote address and reset the dst cache only after the new\nbind has been published successfully.\n\nTrack remote endpoint changes separately so that float notification and\ntransport-address rehashing remain limited to actual peer floats.","Type":"Description","Title":"ovpn: replace bind when learning local endpoint"}]}}}