In the Linux kernel, the following vulnerability has been resolved: perf: arm-ni: Unregister PMUs on probe failure When a resource allocation fails in one clock domain of an NI device, we need to p…

Summary

In the Linux kernel, the following vulnerability has been resolved: perf: arm-ni: Unregister PMUs on probe failure When a resource allocation fails in one clock domain of an NI device, we need to properly roll back all previously registered perf PMUs in other clock domains of the same device. Otherwise, it can lead to kernel panics. Calling arm_ni_init+0x0/0xff8 [arm_ni] @ 2374 arm-ni ARMHCB70:00: Failed to request PMU region 0x1f3c13000 arm-ni ARMHCB70:00: probe with driver arm-ni failed w…