{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-43889", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-17T09:11:59.288Z", "datePublished": "2024-08-26T10:10:42.270Z", "dateUpdated": "2026-05-12T11:57:10.516Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:31:46.630Z" }, "descriptions": [ { "lang": "en", "value": "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] \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] \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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/padata.c" ], "versions": [ { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "ab8b397d5997d8c37610252528edc54bebf9f6d3", "status": "affected", "versionType": "git" }, { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "8f5ffd2af7274853ff91d6cd62541191d9fbd10d", "status": "affected", "versionType": "git" }, { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f", "status": "affected", "versionType": "git" }, { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "924f788c906dccaca30acab86c7124371e1d6f2c", "status": "affected", "versionType": "git" }, { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "da0ffe84fcc1627a7dff82c80b823b94236af905", "status": "affected", "versionType": "git" }, { "version": "004ed42638f4428e70ead59d170f3d17ff761a0f", "lessThan": "6d45e1c948a8b7ed6ceddb14319af69424db730c", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/padata.c" ], "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.224", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.165", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.105", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.46", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.5", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11", "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": "5.8", "versionEndExcluding": "5.10.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1.105" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.6.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.10.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.11" } ] } ] } ], "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 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