{"api_version":"1","generated_at":"2026-08-15T15:12:48+00:00","cve":"CVE-2026-74464","urls":{"html":"https://cve.report/CVE-2026-74464","api":"https://cve.report/api/cve/CVE-2026-74464.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74464","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74464"},"summary":{"title":"net: openvswitch: fix skb leak on flow key update failure during ct","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix skb leak on flow key update failure during ct\n\novs_ct_execute() always steals or frees the skb on failure while\novs_flow_key_update() does not.  So, if it fails and we return right\naway, the skb ends up leaked.\n\nFix that by breaking instead and letting the common error handling\ncode at the bottom of the loop to free the skb properly.\n\nThis is a very unlikely scenario as it requires the packet to become\nunparseable by applying a set of actions on a previously parseable skb,\nbut should be fixed nevertheless.\n\nReported by Sashiko.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:51","updated_at":"2026-08-15 13:17:51"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794","name":"https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea","name":"https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce","name":"https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41","name":"https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc","name":"https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74464","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74464","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 736e972f3f8a304158345223ac6e816166a467ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 e84dfaac50aab45ad8c670da43e3aa1f97bd2a41 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 e0ba8eaef2a0d02a7a485e6a7157e47272b65cea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 393f3c72600ab6721d732a0ab245bc896c5b28fc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 bc62e843bc48f933da765ce47079fd992e535794 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc6 * 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/openvswitch/actions.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"736e972f3f8a304158345223ac6e816166a467ce","status":"affected","version":"ec0d043d05e6e3c0c2fac5de922c800c027c6386","versionType":"git"},{"lessThan":"e84dfaac50aab45ad8c670da43e3aa1f97bd2a41","status":"affected","version":"ec0d043d05e6e3c0c2fac5de922c800c027c6386","versionType":"git"},{"lessThan":"e0ba8eaef2a0d02a7a485e6a7157e47272b65cea","status":"affected","version":"ec0d043d05e6e3c0c2fac5de922c800c027c6386","versionType":"git"},{"lessThan":"393f3c72600ab6721d732a0ab245bc896c5b28fc","status":"affected","version":"ec0d043d05e6e3c0c2fac5de922c800c027c6386","versionType":"git"},{"lessThan":"bc62e843bc48f933da765ce47079fd992e535794","status":"affected","version":"ec0d043d05e6e3c0c2fac5de922c800c027c6386","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/openvswitch/actions.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.3"},{"lessThan":"4.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"4.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"4.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"4.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"4.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc6","versionStartIncluding":"4.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix skb leak on flow key update failure during ct\n\novs_ct_execute() always steals or frees the skb on failure while\novs_flow_key_update() does not.  So, if it fails and we return right\naway, the skb ends up leaked.\n\nFix that by breaking instead and letting the common error handling\ncode at the bottom of the loop to free the skb properly.\n\nThis is a very unlikely scenario as it requires the packet to become\nunparseable by applying a set of actions on a previously parseable skb,\nbut should be fixed nevertheless.\n\nReported by Sashiko."}],"providerMetadata":{"dateUpdated":"2026-08-15T12:27:03.786Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce"},{"url":"https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41"},{"url":"https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea"},{"url":"https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc"},{"url":"https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794"}],"title":"net: openvswitch: fix skb leak on flow key update failure during ct","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74464","datePublished":"2026-08-15T12:27:03.786Z","dateReserved":"2026-08-15T05:44:03.901Z","dateUpdated":"2026-08-15T12:27:03.786Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:51","lastModifiedDate":"2026-08-15 13:17:51","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74464","Ordinal":"1","Title":"net: openvswitch: fix skb leak on flow key update failure during","CVE":"CVE-2026-74464","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74464","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix skb leak on flow key update failure during ct\n\novs_ct_execute() always steals or frees the skb on failure while\novs_flow_key_update() does not.  So, if it fails and we return right\naway, the skb ends up leaked.\n\nFix that by breaking instead and letting the common error handling\ncode at the bottom of the loop to free the skb properly.\n\nThis is a very unlikely scenario as it requires the packet to become\nunparseable by applying a set of actions on a previously parseable skb,\nbut should be fixed nevertheless.\n\nReported by Sashiko.","Type":"Description","Title":"net: openvswitch: fix skb leak on flow key update failure during"}]}}}