{"api_version":"1","generated_at":"2026-08-22T21:53:01+00:00","cve":"CVE-2026-74669","urls":{"html":"https://cve.report/CVE-2026-74669","api":"https://cve.report/api/cve/CVE-2026-74669.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74669","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74669"},"summary":{"title":"ipvs: clear IPv4 options after rebasing tunnel ICMP errors","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear IPv4 options after rebasing tunnel ICMP errors\n\nip_vs_in_icmp() rebases an skb from the outer ICMP packet to the\nquoted original request before passing it to icmp_send(). However,\nIPCB(skb)->opt still describes the outer IPv4 header.\n\nA timestamp option in the outer header can therefore leave an offset\nthat points into the quoted transport header after the rebase.\n__ip_options_echo() treats a byte at that stale location as the option\nlength and copies it into the fixed-size option storage on the\n__icmp_send() stack, causing a stack out-of-bounds write.\n\nClear the stale option metadata after resetting the network header.\nKeep the remaining control block fields, including the ingress\ninterface used by the ICMP response path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:40","updated_at":"2026-08-22 16:16:40"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/37c61b3745129cbd682c557b51345828120972e5","name":"https://git.kernel.org/stable/c/37c61b3745129cbd682c557b51345828120972e5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c9413b50204738fbc429bb86bf01353c393a6c28","name":"https://git.kernel.org/stable/c/c9413b50204738fbc429bb86bf01353c393a6c28","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e0ba936287dfe9783426aac27e5fd76fe35b38c9","name":"https://git.kernel.org/stable/c/e0ba936287dfe9783426aac27e5fd76fe35b38c9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/79ffa99202c944467e28b13b513bf2998732edff","name":"https://git.kernel.org/stable/c/79ffa99202c944467e28b13b513bf2998732edff","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6f46fc460e9316062bdcdf89199eb5d7a33da33b","name":"https://git.kernel.org/stable/c/6f46fc460e9316062bdcdf89199eb5d7a33da33b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/384b4dae14277d369221d187e9b3af56c79d2e50","name":"https://git.kernel.org/stable/c/384b4dae14277d369221d187e9b3af56c79d2e50","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/75eec935444db4af2123e0491936f6e273d7ea00","name":"https://git.kernel.org/stable/c/75eec935444db4af2123e0491936f6e273d7ea00","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ed246dd85ebf27c1f6b7897834d40786c0ca3006","name":"https://git.kernel.org/stable/c/ed246dd85ebf27c1f6b7897834d40786c0ca3006","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74669","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74669","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 79ffa99202c944467e28b13b513bf2998732edff git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e c9413b50204738fbc429bb86bf01353c393a6c28 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 37c61b3745129cbd682c557b51345828120972e5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e ed246dd85ebf27c1f6b7897834d40786c0ca3006 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * 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":["net/netfilter/ipvs/ip_vs_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"79ffa99202c944467e28b13b513bf2998732edff","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"c9413b50204738fbc429bb86bf01353c393a6c28","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"37c61b3745129cbd682c557b51345828120972e5","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"ed246dd85ebf27c1f6b7897834d40786c0ca3006","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"6f46fc460e9316062bdcdf89199eb5d7a33da33b","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"75eec935444db4af2123e0491936f6e273d7ea00","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"384b4dae14277d369221d187e9b3af56c79d2e50","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"},{"lessThan":"e0ba936287dfe9783426aac27e5fd76fe35b38c9","status":"affected","version":"f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/netfilter/ipvs/ip_vs_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.7"},{"lessThan":"3.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"3.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"3.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear IPv4 options after rebasing tunnel ICMP errors\n\nip_vs_in_icmp() rebases an skb from the outer ICMP packet to the\nquoted original request before passing it to icmp_send(). However,\nIPCB(skb)->opt still describes the outer IPv4 header.\n\nA timestamp option in the outer header can therefore leave an offset\nthat points into the quoted transport header after the rebase.\n__ip_options_echo() treats a byte at that stale location as the option\nlength and copies it into the fixed-size option storage on the\n__icmp_send() stack, causing a stack out-of-bounds write.\n\nClear the stale option metadata after resetting the network header.\nKeep the remaining control block fields, including the ingress\ninterface used by the ICMP response path."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:40.221Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/79ffa99202c944467e28b13b513bf2998732edff"},{"url":"https://git.kernel.org/stable/c/c9413b50204738fbc429bb86bf01353c393a6c28"},{"url":"https://git.kernel.org/stable/c/37c61b3745129cbd682c557b51345828120972e5"},{"url":"https://git.kernel.org/stable/c/ed246dd85ebf27c1f6b7897834d40786c0ca3006"},{"url":"https://git.kernel.org/stable/c/6f46fc460e9316062bdcdf89199eb5d7a33da33b"},{"url":"https://git.kernel.org/stable/c/75eec935444db4af2123e0491936f6e273d7ea00"},{"url":"https://git.kernel.org/stable/c/384b4dae14277d369221d187e9b3af56c79d2e50"},{"url":"https://git.kernel.org/stable/c/e0ba936287dfe9783426aac27e5fd76fe35b38c9"}],"title":"ipvs: clear IPv4 options after rebasing tunnel ICMP errors","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74669","datePublished":"2026-08-22T15:32:40.221Z","dateReserved":"2026-08-15T05:44:03.924Z","dateUpdated":"2026-08-22T15:32:40.221Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:40","lastModifiedDate":"2026-08-22 16:16:40","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74669","Ordinal":"1","Title":"ipvs: clear IPv4 options after rebasing tunnel ICMP errors","CVE":"CVE-2026-74669","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74669","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear IPv4 options after rebasing tunnel ICMP errors\n\nip_vs_in_icmp() rebases an skb from the outer ICMP packet to the\nquoted original request before passing it to icmp_send(). However,\nIPCB(skb)->opt still describes the outer IPv4 header.\n\nA timestamp option in the outer header can therefore leave an offset\nthat points into the quoted transport header after the rebase.\n__ip_options_echo() treats a byte at that stale location as the option\nlength and copies it into the fixed-size option storage on the\n__icmp_send() stack, causing a stack out-of-bounds write.\n\nClear the stale option metadata after resetting the network header.\nKeep the remaining control block fields, including the ingress\ninterface used by the ICMP response path.","Type":"Description","Title":"ipvs: clear IPv4 options after rebasing tunnel ICMP errors"}]}}}