{"id":"CVE-2024-43889","revision":null,"records":[{"revision":"dff1a0d2241148acb1653edcfc581d5e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-43889","aliases":[],"title":"padata: Fix possible divide-by-0 panic in padata_mt_helper()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npadata: Fix possible divide-by-0 panic in padata_mt_helper()\n\nWe are hit with a not easily reproducible divide-by-0 panic in padata.c at\nbootup time.\n\n  [   10.017908] Oops: divide error: 0000 1 PREEMPT SMP NOPTI\n  [   10.017908] CPU: 26 PID: 2627 Comm: kworker/u1666:1 Not tainted 6.10.0-15.el10.x86_64 #1\n  [   10.017908] Hardware name: Lenovo ThinkSystem SR950 [7X12CTO1WW]/[7X12CTO1WW], BIOS [PSE140J-2.30] 07/20/2021\n  [   10.017908] Workqueue: events_unbound padata_mt_helper\n  [   10.017908] RIP: 0010:padata_mt_helper+0x39/0xb0\n    :\n  [   10.017963] Call Trace:\n  [   10.017968]  <TASK>\n  [   10.018004]  ? padata_mt_helper+0x39/0xb0\n  [   10.018084]  process_one_work+0x174/0x330\n  [   10.018093]  worker_thread+0x266/0x3a0\n  [   10.018111]  kthread+0xcf/0x100\n  [   10.018124]  ret_from_fork+0x31/0x50\n  [   10.018138]  ret_from_fork_asm+0x1a/0x30\n  [   10.018147]  </TASK>\n\nLooking at the padata_mt_helper() function, the only way a divide-by-0\npanic can happen is when ps->chunk_size is 0.  The way that chunk_size is\ninitialized in padata_do_multithreaded(), chunk_size can be 0 when the\nmin_chunk in the passed-in padata_mt_job structure is 0.\n\nFix this divide-by-0 panic by making sure that chunk_size will be at least\n1 no matter what the input parameters are.","state":0,"publishedAt":"2024-08-26T10:10:42.27+00:00","modifiedAt":"2026-10-15T00:48:55.559+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                        \"kernel/padata.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"ab8b397d5997d8c37610252528edc54bebf9f6d3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"8f5ffd2af7274853ff91d6cd62541191d9fbd10d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"924f788c906dccaca30acab86c7124371e1d6f2c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"da0ffe84fcc1627a7dff82c80b823b94236af905\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"004ed42638f4428e70ead59d170f3d17ff761a0f\",\n                            \"lessThan\": \"6d45e1c948a8b7ed6ceddb14319af69424db730c\",\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                        \"kernel/padata.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.224\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.165\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.105\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.46\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.10.5\",\n                            \"lessThanOrEqual\": \"6.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.11\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/ab8b397d5997d8c37610252528edc54bebf9f6d3","https://git.kernel.org/stable/c/8f5ffd2af7274853ff91d6cd62541191d9fbd10d","https://git.kernel.org/stable/c/a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f","https://git.kernel.org/stable/c/924f788c906dccaca30acab86c7124371e1d6f2c","https://git.kernel.org/stable/c/da0ffe84fcc1627a7dff82c80b823b94236af905","https://git.kernel.org/stable/c/6d45e1c948a8b7ed6ceddb14319af69424db730c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-43889","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-43889","identifiers":["CVE-2024-43889"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T20:04:25.0077254+00:00","complete":true,"records":1772,"lastAttemptAt":"2026-11-09T20:04:25.0077254+00:00","lastSuccessAt":"2026-11-09T20:04:25.1926568+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:25.192657+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-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-4a9560b8b58726018512a0a26f2f2de094eec0a9257ebc797e76aa7229628f6d","complete":true,"records":421528,"lastAttemptAt":"2026-11-09T20:02:23.7922996+00:00","lastSuccessAt":"2026-11-09T20:02:23.6346925+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:02:23.7922996+00:00","snapshotPublishedAt":"2026-11-09T19:26:49+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-7062dd6d7628421ab96b6fad5e9e5783","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T20:16:49.2041123+00:00","lastSuccessAt":"2026-11-09T20:16:49.199+00:00","error":"9 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T20:16:49.199+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13314,"expectedIdentifiers":13707,"failedIdentifiers":9},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T20:04:25.0077254+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T20:04:25.0077254+00:00","lastSuccessAt":"2026-11-09T20:04:25.193761+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:25.1937612+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-9938fd6291bf40d68f5b1fd395158ad4","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T20:04:38.0577664+00:00","lastSuccessAt":"2026-11-09T20:04:38.055+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:38.055+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":"2026-11-09T20:04:24.9600639+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:24.9600639+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-712163772d637a9cfaa34d4241efb9e9d0ccd6149596c672c613d362f44af841","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T20:02:23.9593912+00:00","lastSuccessAt":"2026-11-09T18:02:23.0088273+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:02:23.9593912+00:00","snapshotPublishedAt":"2026-11-09T17:03:01+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-761ecc9061239b0da572dc9254c6f384c1d19339eb08408c436647a2f26129e9","complete":true,"records":3064,"lastAttemptAt":"2026-11-09T20:04:24.9750181+00:00","lastSuccessAt":"2026-11-09T17:05:03.4044794+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:24.9750181+00:00","snapshotPublishedAt":"2026-11-09T16:33:20+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-604a3d0f2ac3a85e07b87120f064f717efb18ea8fa81b2bec8e0f33ba949fa25","complete":true,"records":231321,"lastAttemptAt":"2026-11-09T20:04:24.8172812+00:00","lastSuccessAt":"2026-11-09T20:04:23.3062045+00:00","error":null,"lastVerifiedAt":"2026-11-09T20:04:24.8172812+00:00","snapshotPublishedAt":"2026-11-09T19:33:14+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}