CVE-2026-53114

Medium

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.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Linux Kernel

PublishedJun 24, 2026

First seenJun 24, 2026

How to fix

Update

linux linux_kernel6.18.33, 7.0.10 or later

Patches

git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040
git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec
git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711

Affected products

Product	Affected versions	Fixed in
linux linux_kernel	6.14.1 ≤ v < 6.18.33, 6.19 ≤ v < 7.0.10, 6.14	6.18.33, 7.0.10

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