{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46172", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.103Z", "datePublished": "2026-05-28T09:36:26.926Z", "dateUpdated": "2026-10-15T01:21:02.038Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T18:00:01.373Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: xfrm6: release dst on error in xfrm6_rcv_encap()\n\nxfrm6_rcv_encap() performs an IPv6 route lookup when the skb does not\nalready have a dst attached. ip6_route_input_lookup() returns a\nreferenced dst entry even when the lookup resolves to an error route.\n\nIf dst->error is set, xfrm6_rcv_encap() drops the skb without attaching\nthe dst to the skb and without releasing the reference returned by the\nlookup. Repeated packets hitting this path therefore leak dst entries.\n\nRelease the dst before jumping to the drop path." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv6/xfrm6_protocol.c" ], "versions": [ { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "a0721bcd72641c32b281f227a94505b31cf54117", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "a20b34f6e854fe6f2aa82528fae7a88759919eb4", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "870560015ce6e0d8f841c6a8aba33c44be52c727", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "c2efc4956981066df2fef1cc77391b523db6d8e4", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "554c9b090c8ac5b1c5c507f4badf8d5d0c9c6e13", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "9d5047782f9bd2829e529df69209bf3232eb561f", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "6a5eec0a2a0e99ec9743cf8f1c4082178811d90a", "status": "affected", "versionType": "git" }, { "version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7", "lessThan": "bc0fcb9823cd0894934cf968b525c575833d7078", "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/ipv6/xfrm6_protocol.c" ], "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "5.8", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.6.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.12.88" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.18.30" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.0.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a0721bcd72641c32b281f227a94505b31cf54117" }, { "url": "https://git.kernel.org/stable/c/a20b34f6e854fe6f2aa82528fae7a88759919eb4" }, { "url": "https://git.kernel.org/stable/c/870560015ce6e0d8f841c6a8aba33c44be52c727" }, { "url": "https://git.kernel.org/stable/c/c2efc4956981066df2fef1cc77391b523db6d8e4" }, { "url": "https://git.kernel.org/stable/c/554c9b090c8ac5b1c5c507f4badf8d5d0c9c6e13" }, { "url": "https://git.kernel.org/stable/c/9d5047782f9bd2829e529df69209bf3232eb561f" }, { "url": "https://git.kernel.org/stable/c/6a5eec0a2a0e99ec9743cf8f1c4082178811d90a" }, { "url": "https://git.kernel.org/stable/c/bc0fcb9823cd0894934cf968b525c575833d7078" } ], "title": "ipv6: xfrm6: release dst on error in xfrm6_rcv_encap()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:21:02.038Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html" } ] } ] } }