{"id":"CVE-2022-49265","summary":"PM: domains: Fix sleep-in-atomic bug caused by genpd_debug_remove()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nPM: domains: Fix sleep-in-atomic bug caused by genpd_debug_remove()\n\nWhen a genpd with GENPD_FLAG_IRQ_SAFE gets removed, the following\nsleep-in-atomic bug will be seen, as genpd_debug_remove() will be called\nwith a spinlock being held.\n\n[    0.029183] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1460\n[    0.029204] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 1, name: swapper/0\n[    0.029219] preempt_count: 1, expected: 0\n[    0.029230] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc4+ #489\n[    0.029245] Hardware name: Thundercomm TurboX CM2290 (DT)\n[    0.029256] Call trace:\n[    0.029265]  dump_backtrace.part.0+0xbc/0xd0\n[    0.029285]  show_stack+0x3c/0xa0\n[    0.029298]  dump_stack_lvl+0x7c/0xa0\n[    0.029311]  dump_stack+0x18/0x34\n[    0.029323]  __might_resched+0x10c/0x13c\n[    0.029338]  __might_sleep+0x4c/0x80\n[    0.029351]  down_read+0x24/0xd0\n[    0.029363]  lookup_one_len_unlocked+0x9c/0xcc\n[    0.029379]  lookup_positive_unlocked+0x10/0x50\n[    0.029392]  debugfs_lookup+0x68/0xac\n[    0.029406]  genpd_remove.part.0+0x12c/0x1b4\n[    0.029419]  of_genpd_remove_last+0xa8/0xd4\n[    0.029434]  psci_cpuidle_domain_probe+0x174/0x53c\n[    0.029449]  platform_probe+0x68/0xe0\n[    0.029462]  really_probe+0x190/0x430\n[    0.029473]  __driver_probe_device+0x90/0x18c\n[    0.029485]  driver_probe_device+0x40/0xe0\n[    0.029497]  __driver_attach+0xf4/0x1d0\n[    0.029508]  bus_for_each_dev+0x70/0xd0\n[    0.029523]  driver_attach+0x24/0x30\n[    0.029534]  bus_add_driver+0x164/0x22c\n[    0.029545]  driver_register+0x78/0x130\n[    0.029556]  __platform_driver_register+0x28/0x34\n[    0.029569]  psci_idle_init_domains+0x1c/0x28\n[    0.029583]  do_one_initcall+0x50/0x1b0\n[    0.029595]  kernel_init_freeable+0x214/0x280\n[    0.029609]  kernel_init+0x2c/0x13c\n[    0.029622]  ret_from_fork+0x10/0x20\n\nIt doesn't seem necessary to call genpd_debug_remove() with the lock, so\nmove it out from locking to fix the problem.","modified":"2026-05-18T05:55:17.182189356Z","published":"2025-02-26T01:56:15.221Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49265.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2039163c30f886cf5638afd6993705ae9bb34a06"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d1b6840d8fb9b35193d45d8fe6b4d830bfd20c3c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f6bfe8b5b2c2a5ac8bd2fc7bca3706e6c3fc26d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fee777ea77769cc5392a34805d9d73099a223fae"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49265.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49265"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"718072ceb211833f3c71724f49d733d636067191"},{"fixed":"2039163c30f886cf5638afd6993705ae9bb34a06"},{"fixed":"d1b6840d8fb9b35193d45d8fe6b4d830bfd20c3c"},{"fixed":"fee777ea77769cc5392a34805d9d73099a223fae"},{"fixed":"f6bfe8b5b2c2a5ac8bd2fc7bca3706e6c3fc26d8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49265.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.33"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"5.16.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.17.0"},{"fixed":"5.17.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49265.json"}}],"schema_version":"1.7.5"}