CVE-2026-31480
Published: Apr 22, 2026
Modified: May 11, 2026
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).
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 - < cf929c21eeed5bd39873fb14bfdfff963fa6f1daaffected bce29ac9ce0bb0b0b146b687ab978378c21e9078 - < 7aa095ce7d224308cb6979956f0de8607df93d4faffected bce29ac9ce0bb0b0b146b687ab978378c21e9078 - < ef41a85a55022e27cdaebf22a6676910b66f65aaaffected bce29ac9ce0bb0b0b146b687ab978378c21e9078 - < 03474a01c199de17a8e2d39b51df6beb9c76e831affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 - < f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7+2 more versions |
Linux | Linux | affected 5.14unaffected 0 - < 5.14unaffected 5.15.203 - <= 5.15.*unaffected 6.1.168 - <= 6.1.*unaffected 6.6.131 - <= 6.6.*+4 more versions |
References
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