{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74464", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.901Z", "datePublished": "2026-08-15T12:27:03.786Z", "dateUpdated": "2026-08-17T05:19:54.182Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:19:54.182Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/openvswitch/actions.c"], "versions": [{"version": "ec0d043d05e6e3c0c2fac5de922c800c027c6386", "lessThan": "736e972f3f8a304158345223ac6e816166a467ce", "status": "affected", "versionType": "git"}, {"version": "ec0d043d05e6e3c0c2fac5de922c800c027c6386", "lessThan": "e84dfaac50aab45ad8c670da43e3aa1f97bd2a41", "status": "affected", "versionType": "git"}, {"version": "ec0d043d05e6e3c0c2fac5de922c800c027c6386", "lessThan": "e0ba8eaef2a0d02a7a485e6a7157e47272b65cea", "status": "affected", "versionType": "git"}, {"version": "ec0d043d05e6e3c0c2fac5de922c800c027c6386", "lessThan": "393f3c72600ab6721d732a0ab245bc896c5b28fc", "status": "affected", "versionType": "git"}, {"version": "ec0d043d05e6e3c0c2fac5de922c800c027c6386", "lessThan": "bc62e843bc48f933da765ce47079fd992e535794", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/openvswitch/actions.c"], "versions": [{"version": "4.3", "status": "affected"}, {"version": "0", "lessThan": "4.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "7.2"}]}]}], "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"}}}}

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{"affected": [{"affectedData": [{"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", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-74464", "lastModified": "2026-08-17T06:19:42.330", "metrics": {}, "published": "2026-08-15T13:17:51.077", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net: openvswitch: fix skb leak on flow key update failure during ct", "id": "2517085", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517085"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Open vSwitch (OVS) component of the Linux kernel. This vulnerability occurs when a packet becomes unparseable during a flow key update operation. This can lead to a memory leak, potentially allowing a remote attacker to cause a denial of service by exhausting system resources."], "name": "CVE-2026-74464", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74464\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74464\nhttps://lore.kernel.org/linux-cve-announce/2026081533-CVE-2026-74464-c410@gregkh/T"], "threat_severity": "Moderate"}

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