CVE-2024-43889

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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": 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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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.224", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.165", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.105", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.46", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.5", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "5.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:31:46.630Z"}}}, "cveMetadata": {"cveId": "CVE-2024-43889", "state": "PUBLISHED", "dateUpdated": "2026-10-15T00:48:55.559Z", "dateReserved": "2024-08-17T09:11:59.288Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-26T10:10:42.270Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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GNU/Linux subsystem", "vendor": "Siemens", "versions": [{"lessThan": "V1.1.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8DCF7301-712B-425B-85EB-C0E15024C5E0", "versionEndExcluding": "5.10.224", "versionStartIncluding": "5.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4E2B568-3171-41DE-B519-F2B1A3600D94", "versionEndExcluding": "5.15.165", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "89BEB24B-0F37-4C92-A397-564DA7CD8EE9", "versionEndExcluding": "6.1.105", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA11941E-81FB-484C-B583-881EEB488340", "versionEndExcluding": "6.6.46", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D074AE50-4A5E-499C-A2FD-75FD60DEA560", "versionEndExcluding": "6.10.5", "versionStartIncluding": "6.7", "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", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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] <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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: padata: corrige un posible p\u00e1nico de divisi\u00f3n por 0 en padata_mt_helper() Nos encontramos con un p\u00e1nico de divisi\u00f3n por 0 que no es f\u00e1cilmente reproducible en padata.c en el momento del arranque. [ 10.017908] Vaya: error de divisi\u00f3n: 0000 1 PREEMPT SMP NOPTI [ 10.017908] CPU: 26 PID: 2627 Comm: kworker/u1666:1 No contaminado 6.10.0-15.el10.x86_64 #1 [ 10.017908] Nombre del hardware: Lenovo ThinkSystem SR950 [7X12CTO1WW]/[7X12CTO1WW], BIOS [PSE140J-2.30] 20/07/2021 [10.017908] Cola de trabajo: events_unbound padata_mt_helper [10.017908] RIP: 0010:padata_mt_helper+0x39/0xb0: [ 10.017963] Seguimiento de llamadas: [ 10.017968] &lt; TAREA&gt; [10.018004] ? padata_mt_helper+0x39/0xb0 [ 10.018084] proceso_one_work+0x174/0x330 [ 10.018093] trabajador_thread+0x266/0x3a0 [ 10.018111] kthread+0xcf/0x100 [ 10.018124] 1/0x50 [ 10.018138] ret_from_fork_asm+0x1a/0x30 [ 10.018147] Mirando la funci\u00f3n padata_mt_helper(), la \u00fanica forma en que puede ocurrir un p\u00e1nico de divisi\u00f3n por 0 es cuando ps-&gt;chunk_size es 0. La forma en que chunk_size se inicializa en padata_do_multithreaded(), chunk_size puede ser 0 cuando min_chunk en la estructura pasada padata_mt_job es 0. Solucione este p\u00e1nico de divisi\u00f3n por 0 asegur\u00e1ndose de que chunk_size sea al menos 1 sin importar cu\u00e1les sean los par\u00e1metros de entrada."}], "id": "CVE-2024-43889", "lastModified": "2026-10-15T01:18:49.130", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-43889", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:29:28.630880Z", "version": "2.0.3"}}]}, "published": "2024-08-26T11:15:03.980", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d45e1c948a8b7ed6ceddb14319af69424db730c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f5ffd2af7274853ff91d6cd62541191d9fbd10d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/924f788c906dccaca30acab86c7124371e1d6f2c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ab8b397d5997d8c37610252528edc54bebf9f6d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da0ffe84fcc1627a7dff82c80b823b94236af905"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:8870", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-11-05T00:00:00Z"}, {"advisory": "RHSA-2024:8856", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.27.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-11-05T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:2270", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.57.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-03-05T00:00:00Z"}], "bugzilla": {"description": "kernel: padata: Fix possible divide-by-0 panic in padata_mt_helper()", "id": "2307862", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2307862"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npadata: Fix possible divide-by-0 panic in padata_mt_helper()\nWe are hit with a not easily reproducible divide-by-0 panic in padata.c at\nbootup time.\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>\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.\nFix this divide-by-0 panic by making sure that chunk_size will be at least\n1 no matter what the input parameters are.", "A denial of service vulnerability exists in the Linux kernel. A possible divide-by-0 is in the padata_mt_helper() function when the ps->chunk_size is 0. This vulnerability could result in a loss of system availability."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-43889", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-43889\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-43889\nhttps://lore.kernel.org/linux-cve-announce/2024082600-CVE-2024-43889-4d0b@gregkh/T"], "threat_severity": "Moderate"}

{}