What’s Vulnerable › Vulnerabilities

CVE-2026-53114: perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-24 · updated 2026-07-23

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.

Affected products

• Linux kernel: from 6.14.1 before 6.18.33; from 6.19 before 7.0.10; 6.14 — fixed in 6.18.33, 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.18.33, 7.0.10. Check the vendor advisory for mitigations.

References

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

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