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).
Product status
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before cf929c21eeed5bd39873fb14bfdfff963fa6f1da
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before 7aa095ce7d224308cb6979956f0de8607df93d4f
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before ef41a85a55022e27cdaebf22a6676910b66f65aa
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before 03474a01c199de17a8e2d39b51df6beb9c76e831
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before 7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f
bce29ac9ce0bb0b0b146b687ab978378c21e9078 (git) before 1f9885732248d22f788e4992c739a98c88ab8a55
5.14
Any version before 5.14
5.15.203 (semver)
6.1.168 (semver)
6.6.131 (semver)
6.12.80 (semver)
6.18.21 (semver)
6.19.11 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da
git.kernel.org/...c/7aa095ce7d224308cb6979956f0de8607df93d4f
git.kernel.org/...c/ef41a85a55022e27cdaebf22a6676910b66f65aa
git.kernel.org/...c/03474a01c199de17a8e2d39b51df6beb9c76e831
git.kernel.org/...c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7
git.kernel.org/...c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f
git.kernel.org/...c/1f9885732248d22f788e4992c739a98c88ab8a55