{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45893", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.083Z", "datePublished": "2026-05-27T12:17:04.135Z", "dateUpdated": "2026-05-27T12:17:04.135Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:17:04.135Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix & Optimize table creation from possibly unaligned memory\n\nSource blob may come from userspace and might be unaligned.\nTry to optize the copying process by avoiding unaligned memory accesses.\n\n- Added Fixes tag\n- Added \"Fix &\" to description as this doesn't just optimize but fixes\n a potential unaligned memory access\n[jj: remove duplicate word \"convert\" in comment trigger checkpatch warning]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/include/match.h", "security/apparmor/match.c"], "versions": [{"version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "lessThan": "47e351dfef60ab0e3285133556e1a9c7f646a969", "status": "affected", "versionType": "git"}, {"version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "lessThan": "e027999049c493fb728ead5a90db76942181a935", "status": "affected", "versionType": "git"}, {"version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "lessThan": "226c3b10aab23f73b03c47e7773107de56ba3a4e", "status": "affected", "versionType": "git"}, {"version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "lessThan": "6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/include/match.h", "security/apparmor/match.c"], "versions": [{"version": "4.11", "status": "affected"}, {"version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "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": "4.11", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969"}, {"url": "https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935"}, {"url": "https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e"}, {"url": "https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a"}], "title": "apparmor: Fix & Optimize table creation from possibly unaligned memory", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/apparmor/include/match.h", "security/apparmor/match.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "47e351dfef60ab0e3285133556e1a9c7f646a969", "status": "affected", "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "versionType": "git"}, {"lessThan": "e027999049c493fb728ead5a90db76942181a935", "status": "affected", "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "versionType": "git"}, {"lessThan": "226c3b10aab23f73b03c47e7773107de56ba3a4e", "status": "affected", "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "versionType": "git"}, {"lessThan": "6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a", "status": "affected", "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/apparmor/include/match.h", "security/apparmor/match.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"lessThan": "4.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "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\napparmor: Fix & Optimize table creation from possibly unaligned memory\n\nSource blob may come from userspace and might be unaligned.\nTry to optize the copying process by avoiding unaligned memory accesses.\n\n- Added Fixes tag\n- Added \"Fix &\" to description as this doesn't just optimize but fixes\n a potential unaligned memory access\n[jj: remove duplicate word \"convert\" in comment trigger checkpatch warning]"}], "id": "CVE-2026-45893", "lastModified": "2026-06-17T10:52:41.110", "metrics": {}, "published": "2026-05-27T14:17:03.487", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: apparmor: Fix & Optimize table creation from possibly unaligned memory", "id": "2482072", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482072"}, "csaw": false, "cwe": "CWE-823", "details": ["A flaw was found in the Linux kernel's AppArmor security module. This vulnerability occurs when AppArmor attempts to create tables from user-provided data that may be unaligned in memory. A local attacker could exploit this by providing specially crafted input, leading to unaligned memory accesses. This could result in system instability or unexpected behavior."], "name": "CVE-2026-45893", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45893\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45893\nhttps://lore.kernel.org/linux-cve-announce/2026052718-CVE-2026-45893-87f1@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e6e8bf418850d7958311a96ccfb594f2bcc8313e,47e351dfef60ab0e3285133556e1a9c7f646a969)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e6e8bf418850d7958311a96ccfb594f2bcc8313e,e027999049c493fb728ead5a90db76942181a935)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e6e8bf418850d7958311a96ccfb594f2bcc8313e,226c3b10aab23f73b03c47e7773107de56ba3a4e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e6e8bf418850d7958311a96ccfb594f2bcc8313e,6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,4.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T16:00:08.703639+00:00", "updated": "2026-05-28T17:30:15.572836+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}