{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-31671", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.130Z", "datePublished": "2026-04-24T14:45:18.669Z", "dateUpdated": "2026-10-15T01:17:41.666Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:13:23.374Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm_user: fix info leak in build_report()\n\nstruct xfrm_user_report is a __u8 proto field followed by a struct\nxfrm_selector which means there is three \"empty\" bytes of padding, but\nthe padding is never zeroed before copying to userspace. Fix that up by\nzeroing the structure before setting individual member variables." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/xfrm/xfrm_user.c" ], "versions": [ { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "d27c02eec529f78055a46a5c9e6c62684382b2d8", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "716c546e88cfe49d841658240e10cb57bc50a2cc", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "e0c8542c3d097ed4205ded51868195d5d6ddac62", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "ff5ee507302303b15859753c3e0d67d38fd12c88", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "6c55714c931051cd7f4839c19ce0867179fd22fe", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72", "status": "affected", "versionType": "git" }, { "version": "97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5", "lessThan": "d10119968d0e1f2b669604baf2a8b5fdb72fa6b4", "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/xfrm/xfrm_user.c" ], "versions": [ { "version": "2.6.19", "status": "affected" }, { "version": "0", "lessThan": "2.6.19", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.169", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.135", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.82", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.23", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.13", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0", "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": "2.6.19", "versionEndExcluding": "5.10.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "5.15.203" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "6.1.169" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "6.6.135" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "6.12.82" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "6.18.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "6.19.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.19", "versionEndExcluding": "7.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d27c02eec529f78055a46a5c9e6c62684382b2d8" }, { "url": "https://git.kernel.org/stable/c/716c546e88cfe49d841658240e10cb57bc50a2cc" }, { "url": "https://git.kernel.org/stable/c/0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9" }, { "url": "https://git.kernel.org/stable/c/e0c8542c3d097ed4205ded51868195d5d6ddac62" }, { "url": "https://git.kernel.org/stable/c/ff5ee507302303b15859753c3e0d67d38fd12c88" }, { "url": "https://git.kernel.org/stable/c/6c55714c931051cd7f4839c19ce0867179fd22fe" }, { "url": "https://git.kernel.org/stable/c/0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72" }, { "url": "https://git.kernel.org/stable/c/d10119968d0e1f2b669604baf2a8b5fdb72fa6b4" } ], "title": "xfrm_user: fix info leak in build_report()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:17:41.666Z" }, "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": "V3.1.5", "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", 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