{"id":"CVE-2022-49322","summary":"tracing: Fix sleeping function called from invalid context on RT kernel","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix sleeping function called from invalid context on RT kernel\n\nWhen setting bootparams=\"trace_event=initcall:initcall_start tp_printk=1\" in the\ncmdline, the output_printk() was called, and the spin_lock_irqsave() was called in the\natomic and irq disable interrupt context suitation. On the PREEMPT_RT kernel,\nthese locks are replaced with sleepable rt-spinlock, so the stack calltrace will\nbe triggered.\nFix it by raw_spin_lock_irqsave when PREEMPT_RT and \"trace_event=initcall:initcall_start\ntp_printk=1\" enabled.\n\n BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46\n in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0\n preempt_count: 2, expected: 0\n RCU nest depth: 0, expected: 0\n Preemption disabled at:\n [\u003cffffffff8992303e\u003e] try_to_wake_up+0x7e/0xba0\n CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.1-rt17+ #19 34c5812404187a875f32bee7977f7367f9679ea7\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x60/0x8c\n  dump_stack+0x10/0x12\n  __might_resched.cold+0x11d/0x155\n  rt_spin_lock+0x40/0x70\n  trace_event_buffer_commit+0x2fa/0x4c0\n  ? map_vsyscall+0x93/0x93\n  trace_event_raw_event_initcall_start+0xbe/0x110\n  ? perf_trace_initcall_finish+0x210/0x210\n  ? probe_sched_wakeup+0x34/0x40\n  ? ttwu_do_wakeup+0xda/0x310\n  ? trace_hardirqs_on+0x35/0x170\n  ? map_vsyscall+0x93/0x93\n  do_one_initcall+0x217/0x3c0\n  ? trace_event_raw_event_initcall_level+0x170/0x170\n  ? push_cpu_stop+0x400/0x400\n  ? cblist_init_generic+0x241/0x290\n  kernel_init_freeable+0x1ac/0x347\n  ? _raw_spin_unlock_irq+0x65/0x80\n  ? rest_init+0xf0/0xf0\n  kernel_init+0x1e/0x150\n  ret_from_fork+0x22/0x30\n  \u003c/TASK\u003e","modified":"2026-03-20T12:22:21.972195Z","published":"2025-02-26T02:10:46.658Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1293-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49322.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762"},{"type":"WEB","url":"https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49322.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49322"},{"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":"0daa2302968c13b657118d6ac92471f8fd2f3f28"},{"fixed":"be1f323fb9d9b14a505ca22d742d321769454de1"},{"fixed":"40f9fde06b25884baa0c4bd138b909a9b67218b4"},{"fixed":"48c6ee7d6c614f09b2c8553a95eefef6ecf196e0"},{"fixed":"1788e6dbb61286215442b1af99e51405a6206762"},{"fixed":"9b534640a2c6a8d88168febc82ec6d161184f2ec"},{"fixed":"43bfc4dccc416c964b53cbdc430e814f8b6f770b"},{"fixed":"9abf3db8bdb63ab545034148ef2118f4d088ca59"},{"fixed":"12025abdc8539ed9d5014e2d647a3fd1bd3de5cd"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49322.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}