Description
In the Linux kernel, the following vulnerability has been resolved: perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler Calling perf_allow_kernel() from the NMI context is unsafe and could be fatal. Capture the permission at event-initialization time by storing it in event->hw.flags, and have the NMI handler rely on that cached flag instead of making the call directly.
Affected products
- Linux / Linux50a53b60e141d7e31368a87e222e4dd5597bd4ae – 2783ed2442ce69ae240b787aee6dae801cef7aec
- Linux / Linux50a53b60e141d7e31368a87e222e4dd5597bd4ae – 0584e74fa2b27e9e722cfb5b579f79263df20040
- Linux / Linux50a53b60e141d7e31368a87e222e4dd5597bd4ae – b0a09142622a994c4f4088c3f61db5da87cfc711
- Linux / Linux6.14 – 6.14
- Linux / Linux0 – 6.14
- Linux / Linux6.18.33 – 6.18.*
- Linux / Linux7.0.10 – 7.0.*
- Linux / Linux7.1 – *