CVE-2022-49322

MEDIUM EPSS 10.5%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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>

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
10.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel* <4.14.283
linuxlinux_kernel*≥4.15  –  <4.19.247
linuxlinux_kernel*≥4.20  –  <5.4.198
linuxlinux_kernel*≥5.5  –  <5.10.122
linuxlinux_kernel*≥5.11  –  <5.15.47
linuxlinux_kernel*≥5.16  –  <5.17.15
linuxlinux_kernel*≥5.18  –  <5.18.4

References 8

  • git.kernel.org https://git.kernel.org/stable/c/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1
    Patch