In the Linux kernel, the following vulnerability has been resolved:
cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost
set_boost is a per-policy function call, hence a driver wide lock is unnecessary. Also this mutex_acquire can collide with the mutex_acquire from the mode-switch path in status_store(), which can lead to a deadlock. So, remove it.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.17 | 6.12.31 |
| linux / linux_kernel | 6.13 | 6.14.9 |