{"id":"CVE-2026-45893","state":"PUBLISHED","title":"apparmor: Fix & Optimize table creation from possibly unaligned memory","description":"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]","publishedAt":"2026-05-27T12:17:04.135Z","updatedAt":"2026-10-30T12:25:40.191Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"83939c2afba70b49062c31ca6a6de7f46951d26d","versionType":"git"},{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"1fbc4b24c7443ffd501609be74d9856fb940d703","versionType":"git"},{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"47e351dfef60ab0e3285133556e1a9c7f646a969","versionType":"git"},{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"e027999049c493fb728ead5a90db76942181a935","versionType":"git"},{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"226c3b10aab23f73b03c47e7773107de56ba3a4e","versionType":"git"},{"version":"e6e8bf418850d7958311a96ccfb594f2bcc8313e","status":"affected","lessThan":"6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/apparmor/include/match.h","security/apparmor/match.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.11","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/apparmor/include/match.h","security/apparmor/match.c"]}],"references":["https://git.kernel.org/stable/c/83939c2afba70b49062c31ca6a6de7f46951d26d","https://git.kernel.org/stable/c/1fbc4b24c7443ffd501609be74d9856fb940d703","https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969","https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935","https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e","https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a"],"weaknesses":[],"ingestedAt":"2026-10-30T12:42:04.495Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45893.json","commit":"db8103c5921aac81d5d90efcf3745980dafabf49","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45893","state":"PUBLISHED","datePublished":"2026-05-27T12:17:04.135Z","dateUpdated":"2026-10-30T12:25:40.191Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.083Z"},"containers":{"cna":{"title":"apparmor: Fix & Optimize table creation from possibly unaligned memory","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 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