{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-64371", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.783Z", "datePublished": "2026-07-25T08:50:23.981Z", "dateUpdated": "2026-10-15T01:23:38.736Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:54:21.091Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nproc: protect ptrace_may_access() with exec_update_lock (part 1)\n\nFix the easy cases where procfs currently calls ptrace_may_access() without\nexec_update_lock protection, where the fix is to simply add the extra lock\nor use mm_access():\n\n - do_task_stat(): grab exec_update_lock\n - proc_pid_wchan(): grab exec_update_lock\n - proc_map_files_lookup(): use mm_access() instead of get_task_mm()\n - proc_map_files_readdir(): use mm_access() instead of get_task_mm()\n - proc_ns_get_link(): grab exec_update_lock\n - proc_ns_readlink(): grab exec_update_lock" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/proc/array.c", "fs/proc/base.c", "fs/proc/namespaces.c" ], "versions": [ { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "ae1e630bcaac739f625822078edbaea98366930d", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "d54f14655fd7d7b293698a8b6918563c4c0465e7", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "7456ae990a9738962b33146916fabca62ae3d4e0", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "4bfe8c481846cee52473a2f7d7b30ee8e6749fc4", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "f9b4b03ccc9c69bf7f7298d4559906ebea7143b3", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "c1cfd63326f5d09999134e9052c353faf738286e", "status": "affected", "versionType": "git" }, { "version": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "lessThan": "6650527444dadc63d84aa939d14ecba4fadb2f69", "status": "affected", "versionType": "git" }, { "version": "6b06d6282100dd5aacf7d45443d651a1995bd9c4", "status": "affected", "versionType": "git" }, { "version": "334ed22054b2ec8477e4409e214fc139cf937ef6", "status": "affected", "versionType": "git" }, { "version": "2.6.27.23", "lessThan": "2.6.28", "status": "affected", "versionType": "semver" }, { "version": "2.6.29.3", "lessThan": "2.6.30", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/proc/array.c", "fs/proc/base.c", "fs/proc/namespaces.c" ], "versions": [ { "version": "2.6.30", "status": "affected" }, { "version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.4", "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": "2.6.30", "versionEndExcluding": "5.10.261" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.212" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.1.178" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.6.145" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.12.97" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.18.40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.1.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d" }, { "url": "https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7" }, { "url": "https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9" }, { "url": "https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0" }, { "url": "https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4" }, { "url": "https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3" }, { "url": "https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e" }, { "url": "https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69" } ], "title": "proc: protect ptrace_may_access() with exec_update_lock (part 1)", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:23:38.736Z" }, "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": "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" } ] } ] } }