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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-31480

tracing: Fix potential deadlock in cpu hotplug with osnoise

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Status
Published
Published
Updated
Assigning organization
Linux

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).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < cf929c21eeed5bd39873fb14bfdfff963fa6f1daaffected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < 7aa095ce7d224308cb6979956f0de8607df93d4faffected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < ef41a85a55022e27cdaebf22a6676910b66f65aaaffected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < 03474a01c199de17a8e2d39b51df6beb9c76e831affected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7affected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < 7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9faffected
  • bce29ac9ce0bb0b0b146b687ab978378c21e9078 to < 1f9885732248d22f788e4992c739a98c88ab8a55affected

Linux Linux

Default version status: affected

  • 5.14affected
  • 0 to < 5.14unaffected
  • 5.15.203 to ≤ 5.15.*unaffected
  • 6.1.168 to ≤ 6.1.*unaffected
  • 6.6.131 to ≤ 6.6.*unaffected
  • 6.12.80 to ≤ 6.12.*unaffected
  • 6.18.21 to ≤ 6.18.*unaffected
  • 6.19.11 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References