CVE-2026-53114
UnknownSummary
A vulnerability in the Linux kernel related to calling perf_allow_kernel() from the NMI context has been resolved, which can be unsafe and lead to critical failures.
Risk Assessment
Improper invocation of this function in the NMI context may lead to system crashes, posing a risk to the stability and security of the operating environment.
Recommendation
It is recommended to update the Linux kernel to the latest version to eliminate this vulnerability and ensure system security.
Original NVD description (English source)
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.