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.
CVSS 5.5EPSS 0.11199999999999999%Risk 0.56
View source- Published
- 2026-06-24 17:17:25
- Affected versions
- unknown
- Type
- Kernel
- Last modified
- 2026-07-23 21:30:47
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Operating systems
- Linux