Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.14.1, < 5.15.203 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831Patch
- https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55Patch
- https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9fPatch
- https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4fPatch
- https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1daPatch
- https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aaPatch
- https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7Patch
FAQ
What is CVE-2026-31480?
CVE-2026-31480 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2026-31480?
CVE-2026-31480 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31480?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.