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CVE-2026-53114

perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 50a53b60e141d7e31368a87e222e4dd5597bd4ae before 2783ed2442ce69ae240b787aee6dae801cef7aec; affected 50a53b60e141d7e31368a87e222e4dd5597bd4ae before 0584e74fa2b27e9e722cfb5b579f79263df20040; affected 50a53b60e141d7e31368a87e222e4dd5597bd4ae before b0a09142622a994c4f4088c3f61db5da87cfc711
Linux / Linuxaffected 6.14; unaffected 0 before 6.14; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References