{"id":"DEBIAN-CVE-2024-43889","details":"In the Linux kernel, the following vulnerability has been resolved:  padata: Fix possible divide-by-0 panic in padata_mt_helper()  We are hit with a not easily reproducible divide-by-0 panic in padata.c at bootup time.    [   10.017908] Oops: divide error: 0000 1 PREEMPT SMP NOPTI   [   10.017908] CPU: 26 PID: 2627 Comm: kworker/u1666:1 Not tainted 6.10.0-15.el10.x86_64 #1   [   10.017908] Hardware name: Lenovo ThinkSystem SR950 [7X12CTO1WW]/[7X12CTO1WW], BIOS [PSE140J-2.30] 07/20/2021   [   10.017908] Workqueue: events_unbound padata_mt_helper   [   10.017908] RIP: 0010:padata_mt_helper+0x39/0xb0     :   [   10.017963] Call Trace:   [   10.017968]  \u003cTASK\u003e   [   10.018004]  ? padata_mt_helper+0x39/0xb0   [   10.018084]  process_one_work+0x174/0x330   [   10.018093]  worker_thread+0x266/0x3a0   [   10.018111]  kthread+0xcf/0x100   [   10.018124]  ret_from_fork+0x31/0x50   [   10.018138]  ret_from_fork_asm+0x1a/0x30   [   10.018147]  \u003c/TASK\u003e  Looking at the padata_mt_helper() function, the only way a divide-by-0 panic can happen is when ps-\u003echunk_size is 0.  The way that chunk_size is initialized in padata_do_multithreaded(), chunk_size can be 0 when the min_chunk in the passed-in padata_mt_job structure is 0.  Fix this divide-by-0 panic by making sure that chunk_size will be at least 1 no matter what the input parameters are.","modified":"2026-09-15T09:02:57.813549768Z","published":"2024-08-26T11:15:03.980Z","upstream":["CVE-2024-43889"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-43889"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.106-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43889.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43889.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43889.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}