{"id":"CVE-2024-44975","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-44975","generatedAt":"2026-10-28T00:52:33.751Z","title":"In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: fix panic caused by partcmd_update We find a bug as below: BUG: unable to handle page fault for address: 00000003 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 3…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: fix panic caused by partcmd_update\n\nWe find a bug as below:\nBUG: unable to handle page fault for address: 00000003\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 358 Comm: bash Tainted: G        W I        6.6.0-10893-g60d6\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/4\nRIP: 0010:partition_sched_domains_locked+0x483/0x600\nCode: 01 48 85 d2 74 0d 48 83 05 29 3f f8 03 01 f3 48 0f bc c2 89 c0 48 9\nRSP: 0018:ffffc90000fdbc58 EFLAGS: 00000202\nRAX: 0000000100000003 RBX: ffff888100b3dfa0 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000002fe80\nRBP: ffff888100b3dfb0 R08: 0000000000000001 R09: 0000000000000000\nR10: ffffc90000fdbcb0 R11: 0000000000000004 R12: 0000000000000002\nR13: ffff888100a92b48 R14: 0000000000000000 R15: 0000000000000000\nFS:  00007f44a5425740(0000) GS:ffff888237d80000(0000) knlGS:0000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000100030973 CR3: 000000010722c000 CR4: 00000000000006e0\nCall Trace:\n <TASK>\n ? show_regs+0x8c/0xa0\n ? __die_body+0x23/0xa0\n ? __die+0x3a/0x50\n ? page_fault_oops+0x1d2/0x5c0\n ? partition_sched_domains_locked+0x483/0x600\n ? search_module_extables+0x2a/0xb0\n ? search_exception_tables+0x67/0x90\n ? kernelmode_fixup_or_oops+0x144/0x1b0\n ? __bad_area_nosemaphore+0x211/0x360\n ? up_read+0x3b/0x50\n ? bad_area_nosemaphore+0x1a/0x30\n ? exc_page_fault+0x890/0xd90\n ? __lock_acquire.constprop.0+0x24f/0x8d0\n ? __lock_acquire.constprop.0+0x24f/0x8d0\n ? asm_exc_page_fault+0x26/0x30\n ? partition_sched_domains_locked+0x483/0x600\n ? partition_sched_domains_locked+0xf0/0x600\n rebuild_sched_domains_locked+0x806/0xdc0\n update_partition_sd_lb+0x118/0x130\n cpuset_write_resmask+0xffc/0x1420\n cgroup_file_write+0xb2/0x290\n kernfs_fop_write_iter+0x194/0x290\n new_sync_write+0xeb/0x160\n vfs_write+0x16f/0x1d0\n ksys_write+0x81/0x180\n __x64_sys_write+0x21/0x30\n x64_sys_call+0x2f25/0x4630\n do_syscall_64+0x44/0xb0\n entry_SYSCALL_64_after_hwframe+0x78/0xe2\nRIP: 0033:0x7f44a553c887\n\nIt can be reproduced with cammands:\ncd /sys/fs/cgroup/\nmkdir test\ncd test/\necho +cpuset > ../cgroup.subtree_control\necho root > cpuset.cpus.partition\ncat /sys/fs/cgroup/cpuset.cpus.effective\n0-3\necho 0-3 > cpuset.cpus // taking away all cpus from root\n\nThis issue is caused by the incorrect rebuilding of scheduling domains.\nIn this scenario, test/cpuset.cpus.partition should be an invalid root\nand should not trigger the rebuilding of scheduling domains. When calling\nupdate_parent_effective_cpumask with partcmd_update, if newmask is not\nnull, it should recheck newmask whether there are cpus is available\nfor parect/cs that has tasks.","published":"2024-09-04T20:15:07.000Z","lastModified":"2026-06-17T07:53:20.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["linux/linux kernel"],"epss":{"score":0.00196,"percentile":0.09228,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/73d6c6cf8ef6a3c532aa159f5114077746a372d6","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/959ab6350add903e352890af53e86663739fcb9a","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-44975","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}