{"id":"CVE-2024-43889","title":"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] …","summary":"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] …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-369"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.8, < 5.10.224","linux_kernel >= 5.11, < 5.15.165","linux_kernel >= 5.16, < 6.1.105","linux_kernel >= 6.2, < 6.6.46","linux_kernel >= 6.7, < 6.10.5","linux_kernel = 6.11"],"patched":["linux_kernel 6.10.5"],"published":"2024-08-26","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:18:49.130","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-43889","references":[{"url":"https://git.kernel.org/stable/c/6d45e1c948a8b7ed6ceddb14319af69424db730c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8f5ffd2af7274853ff91d6cd62541191d9fbd10d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/924f788c906dccaca30acab86c7124371e1d6f2c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a29cfcb848c31f22b4de6a531c3e1d68c9bfe09f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ab8b397d5997d8c37610252528edc54bebf9f6d3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/da0ffe84fcc1627a7dff82c80b823b94236af905","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-613116.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00236,"epssPercentile":0.14544,"ingestedAt":"2026-10-15T03:30:12.737Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T15:29:28.630880Z"},"slug":"CVE-2024-43889","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 5.8, < 5.10.224`\n- `linux_kernel >= 5.11, < 5.15.165`\n- `linux_kernel >= 5.16, < 6.1.105`\n- `linux_kernel >= 6.2, < 6.6.46`\n- `linux_kernel >= 6.7, < 6.10.5`\n- `linux_kernel = 6.11`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.10.5`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}