{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-52972", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.375Z", "datePublished": "2026-06-24T16:28:50.425Z", "dateUpdated": "2026-08-17T04:50:24.931Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:50:24.931Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: af_alg - Cap AEAD AD length to 0x80000000\n\nIn order to prevent arithmetic overflows when checking the TX\nbuffer size, cap the associated data length to 0x80000000." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/af_alg.c" ], "versions": [ { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "f8a5203596797f394ff3f9aa4005597a92249802", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "a4fe4eb580bbc7439f649a496d4cf38415a4021c", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "e4c4a5074532eaaa14951994a3aad0d479aa7431", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "265ac26d1c5e17b34d497cbda1f754a1ec8552bc", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "a1c5672faf8e93e38c2deac3979cc767ca5cf918", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "97948906dc8e0ea84775e03e35b60a2063c70193", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "0b3a57d218618cb1cc78ddc9ba02c07de84b46f4", "status": "affected", "versionType": "git" }, { "version": "400c40cf78da00c16e561a3a253ca272455c42ef", "lessThan": "e4c06479d7059888adf2f22bc1ebcf053bf691a2", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/af_alg.c" ], "versions": [ { "version": "4.1", "status": "affected" }, { "version": "0", "lessThan": "4.1", "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": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.5", "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": "4.1", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.6.141" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.12.91" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.18.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.0.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.1.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f8a5203596797f394ff3f9aa4005597a92249802" }, { "url": "https://git.kernel.org/stable/c/a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d" }, { "url": "https://git.kernel.org/stable/c/a4fe4eb580bbc7439f649a496d4cf38415a4021c" }, { "url": "https://git.kernel.org/stable/c/e4c4a5074532eaaa14951994a3aad0d479aa7431" }, { "url": "https://git.kernel.org/stable/c/265ac26d1c5e17b34d497cbda1f754a1ec8552bc" }, { "url": "https://git.kernel.org/stable/c/a1c5672faf8e93e38c2deac3979cc767ca5cf918" }, { "url": "https://git.kernel.org/stable/c/97948906dc8e0ea84775e03e35b60a2063c70193" }, { "url": "https://git.kernel.org/stable/c/0b3a57d218618cb1cc78ddc9ba02c07de84b46f4" }, { "url": "https://git.kernel.org/stable/c/e4c06479d7059888adf2f22bc1ebcf053bf691a2" } ], "title": "crypto: af_alg - Cap AEAD AD length to 0x80000000", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "affected": [ { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:10" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" } ], "datePublic": "2026-06-24T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in the Linux kernel's `af_alg` cryptography module. This vulnerability involves an arithmetic overflow when processing associated data lengths during the transmit buffer size check. A remote attacker could exploit this flaw by providing a specially crafted associated data length, potentially leading to a denial of service (DoS) due to system instability." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-190", "description": "Integer Overflow or Wraparound", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-52972" }, { "name": "RHBZ#2492364", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492364" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52972.json" } ], "timeline": [ { "lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Made public." } ], "title": "kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T02:46:50.271Z" } } ] } }