CVE-2026-53114

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux50a53b60e141d7e31368a87e222e4dd5597bd4ae < 2783ed2442ce69ae240b787aee6dae801cef7aecaffected
LinuxLinux50a53b60e141d7e31368a87e222e4dd5597bd4ae < 0584e74fa2b27e9e722cfb5b579f79263df20040affected
LinuxLinux50a53b60e141d7e31368a87e222e4dd5597bd4ae < b0a09142622a994c4f4088c3f61db5da87cfc711affected
LinuxLinux6.14affected
LinuxLinux0 < 6.14unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References