{"api_version":"1","generated_at":"2026-05-13T00:20:37+00:00","cve":"CVE-2024-43889","urls":{"html":"https://cve.report/CVE-2024-43889","api":"https://cve.report/api/cve/CVE-2024-43889.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-43889","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-43889"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2024-08-26 11:15:03","updated_at":"2026-05-12 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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."}],"providerMetadata":{"dateUpdated":"2026-05-11T20:31:46.630Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ab8b397d5997d8c37610252528edc54bebf9f6d3"},{"url":"https://git.kernel.org/stable/c/8f5ffd2af7274853ff91d6cd62541191d9fbd10d"},{"url":"https://git.kernel.org/stable/c/a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f"},{"url":"https://git.kernel.org/stable/c/924f788c906dccaca30acab86c7124371e1d6f2c"},{"url":"https://git.kernel.org/stable/c/da0ffe84fcc1627a7dff82c80b823b94236af905"},{"url":"https://git.kernel.org/stable/c/6d45e1c948a8b7ed6ceddb14319af69424db730c"}],"title":"padata: Fix possible divide-by-0 panic in padata_mt_helper()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-43889","datePublished":"2024-08-26T10:10:42.270Z","dateReserved":"2024-08-17T09:11:59.288Z","dateUpdated":"2026-05-12T11:57:10.516Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-08-26 11:15:03","lastModifiedDate":"2026-05-12 12:17:08","problem_types":["CWE-369"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.224","matchCriteriaId":"8DCF7301-712B-425B-85EB-C0E15024C5E0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.165","matchCriteriaId":"B4E2B568-3171-41DE-B519-F2B1A3600D94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.105","matchCriteriaId":"89BEB24B-0F37-4C92-A397-564DA7CD8EE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.46","matchCriteriaId":"FA11941E-81FB-484C-B583-881EEB488340"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.5","matchCriteriaId":"D074AE50-4A5E-499C-A2FD-75FD60DEA560"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*","matchCriteriaId":"8B3CE743-2126-47A3-8B7C-822B502CF119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*","matchCriteriaId":"4DEB27E7-30AA-45CC-8934-B89263EF3551"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"43889","Ordinal":"1","Title":"padata: Fix possible divide-by-0 panic in padata_mt_helper()","CVE":"CVE-2024-43889","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"43889","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"padata: Fix possible divide-by-0 panic in padata_mt_helper()"}]}}}