CVE - CVE-2022-49322

CVE-ID
CVE-2022-49322	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix sleeping function called from invalid context on RT kernel When setting bootparams="trace_event=initcall:initcall_start tp_printk=1" in the cmdline, the output_printk() was called, and the spin_lock_irqsave() was called in the atomic and irq disable interrupt context suitation. On the PREEMPT_RT kernel, these locks are replaced with sleepable rt-spinlock, so the stack calltrace will be triggered. Fix it by raw_spin_lock_irqsave when PREEMPT_RT and "trace_event=initcall:initcall_start tp_printk=1" enabled. BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0 preempt_count: 2, expected: 0 RCU nest depth: 0, expected: 0 Preemption disabled at: [<ffffffff8992303e>] try_to_wake_up+0x7e/0xba0 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.1-rt17+ #19 34c5812404187a875f32bee7977f7367f9679ea7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x60/0x8c dump_stack+0x10/0x12 __might_resched.cold+0x11d/0x155 rt_spin_lock+0x40/0x70 trace_event_buffer_commit+0x2fa/0x4c0 ? map_vsyscall+0x93/0x93 trace_event_raw_event_initcall_start+0xbe/0x110 ? perf_trace_initcall_finish+0x210/0x210 ? probe_sched_wakeup+0x34/0x40 ? ttwu_do_wakeup+0xda/0x310 ? trace_hardirqs_on+0x35/0x170 ? map_vsyscall+0x93/0x93 do_one_initcall+0x217/0x3c0 ? trace_event_raw_event_initcall_level+0x170/0x170 ? push_cpu_stop+0x400/0x400 ? cblist_init_generic+0x241/0x290 kernel_init_freeable+0x1ac/0x347 ? _raw_spin_unlock_irq+0x65/0x80 ? rest_init+0xf0/0xf0 kernel_init+0x1e/0x150 ret_from_fork+0x22/0x30 </TASK>
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd URL:https://git.kernel.org/stable/c/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd MISC:https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762 URL:https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762 MISC:https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4 URL:https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4 MISC:https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b URL:https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b MISC:https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0 URL:https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0 MISC:https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59 URL:https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59 MISC:https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec URL:https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec MISC:https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1 URL:https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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