{"id":"CVE-2023-53474","revision":null,"records":[{"revision":"dd08272d13a04ad4828eef4107c46f85","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53474","aliases":[],"title":"x86/MCE/AMD: Use an u64 for bank_map","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/MCE/AMD: Use an u64 for bank_map\n\nThee maximum number of MCA banks is 64 (MAX_NR_BANKS), see\n\n a0bc32b3cacf (\"x86/mce: Increase maximum number of banks to 64\").\n\nHowever, the bank_map which contains a bitfield of which banks to\ninitialize is of type unsigned int and that overflows when those bit\nnumbers are >= 32, leading to UBSAN complaining correctly:\n\n UBSAN: shift-out-of-bounds in arch/x86/kernel/cpu/mce/amd.c:1365:38\n shift exponent 32 is too large for 32-bit type 'int'\n\nChange the bank_map to a u64 and use the proper BIT_ULL() macro when\nmodifying bits in there.\n\n [ bp: Rewrite commit message. ]","state":0,"publishedAt":"2025-10-01T11:42:43.798+00:00","modifiedAt":"2026-10-15T21:41:28.463+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/x86/kernel/cpu/mce/amd.c\"\n ],\n \"versions\": [\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"a9b9ea0e63a0ec5e97bf1219ab6dcbd55e362f83\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"11c58a0c1937c157dbdf82d5ab634d68c99f3098\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"ba8ffb1251eb629c2ec35220e3896cf4f7b888a7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"9669fa17287c3af2bbd4868d4c8fdd9e57f8332e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"67bb7521b6420d81dab7538c0686f18f7d6d09f4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a0bc32b3cacf194dc479b342f006203fd1e1941a\",\n \"lessThan\": \"4c1cdec319b9aadb65737c3eb1f5cb74bd6aa156\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/x86/kernel/cpu/mce/amd.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.10\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.10\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.180\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.111\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.28\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.2.15\",\n \"lessThanOrEqual\": \"6.2.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.3.2\",\n \"lessThanOrEqual\": \"6.3.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.4\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/a9b9ea0e63a0ec5e97bf1219ab6dcbd55e362f83","https://git.kernel.org/stable/c/11c58a0c1937c157dbdf82d5ab634d68c99f3098","https://git.kernel.org/stable/c/ba8ffb1251eb629c2ec35220e3896cf4f7b888a7","https://git.kernel.org/stable/c/9669fa17287c3af2bbd4868d4c8fdd9e57f8332e","https://git.kernel.org/stable/c/67bb7521b6420d81dab7538c0686f18f7d6d09f4","https://git.kernel.org/stable/c/4c1cdec319b9aadb65737c3eb1f5cb74bd6aa156"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53474","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53474","identifiers":["CVE-2023-53474"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3089681+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3089715+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-bce548cb9713389d6cc2da20d64478978e569c118d9e3817d5449036d2c96da4","complete":true,"records":421424,"lastAttemptAt":"2026-11-09T13:02:24.4919458+00:00","lastSuccessAt":"2026-11-09T13:02:24.4462956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:02:24.4919458+00:00","snapshotPublishedAt":"2026-11-09T12:31:22+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-897f1f8852214f7d97a85b009edb7d92","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T13:16:47.5163098+00:00","lastSuccessAt":"2026-11-09T13:16:47.505+00:00","error":"7 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T13:16:47.505+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13700,"expectedIdentifiers":13707,"failedIdentifiers":7},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3096956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3096959+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-fec5a400f2004099a6ceb2e015ba7713","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T13:04:37.3410735+00:00","lastSuccessAt":"2026-11-09T13:04:37.338+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:37.338+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T13:04:36.0102403+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.0102403+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T13:02:24.6845928+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:02:24.6845928+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-c905fa1bd26c7b261e77cc7202a86dc766ff31c2b096b501f3bf44f561e34970","complete":true,"records":3063,"lastAttemptAt":"2026-11-09T13:04:36.1177843+00:00","lastSuccessAt":"2026-11-09T12:02:21.7931207+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.1177843+00:00","snapshotPublishedAt":"2026-11-09T11:18:00+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-3e30324623f4d042faeccbd22ff1ab0b99d8d436d702bf285b288cefe802b265","complete":true,"records":231298,"lastAttemptAt":"2026-11-09T13:04:35.8866798+00:00","lastSuccessAt":"2026-11-09T13:04:34.5744206+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:35.8866798+00:00","snapshotPublishedAt":"2026-11-09T12:33:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}