Improper Locking Affecting kernel-source package, versions <6.12.0-160000.34.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-SLES1600-KERNELSOURCE-17343314
  • published16 Jun 2026
  • disclosed5 Jun 2026

Introduced: 5 Jun 2026

NewCVE-2026-31480  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-source to version 6.12.0-160000.34.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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(&amp;amp;interface_lock);

cpus_read_lock();

[DEAD LOCK]

Fix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).

CVSS Base Scores

version 3.1