CVE-2026-31480

Advisory lineage Upstream: 0 Downstream: 5
Analyzed
Published: 22 Apr 2026, 13:54
Last modified:11 May 2026, 22:09

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.1% LOW
0% probability +0.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Apr 2026, 13:54
Published
Vulnerability first disclosed
11 May 2026, 22:09
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix potential deadlock in cpu hotplug with osnoise The following sequence may leads deadlock in cpu hotplug: task1 task2 task3 ----- ----- ----- mutex_lock(&interface_lock) [CPU GOING OFFLINE] cpus_write_lock(); osnoise_cpu_die(); kthread_stop(task3); wait_for_completion(); osnoise_sleep(); mutex_lock(&interface_lock); cpus_read_lock(); [DEAD LOCK] Fix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.10%• Percentile: 1%

Techniques & Countermeasures

  • CWE-667•Improper Locking

    The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected Systems

  • linux•linux

    ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < cf929c21eeed5bd39873fb14bfdfff963fa6f1da | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < 7aa095ce7d224308cb6979956f0de8607df93d4f | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < ef41a85a55022e27cdaebf22a6676910b66f65aa | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < 03474a01c199de17a8e2d39b51df6beb9c76e831 | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7 | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < 7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f | ≥ bce29ac9ce0bb0b0b146b687ab978378c21e9078, < 1f9885732248d22f788e4992c739a98c88ab8a55 | 5.14

  • linux•linux_kernel

    ≥ 5.14.1, < 5.15.203 | ≥ 5.16, < 6.1.168 | ≥ 6.2, < 6.6.131 | ≥ 6.7, < 6.12.80 | ≥ 6.13, < 6.18.21 | ≥ 6.19, < 6.19.11 | 5.14 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7

References (7)