CVE-2026-53114
perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler
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.
INFO
Published Date :
June 24, 2026, 4:30 p.m.
Last Modified :
June 24, 2026, 4:30 p.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2026-53114
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Cache permission at event-initialization.
- NMI handler should use cached flag.
- Do not call perf_allow_kernel() from NMI.
- Update the Linux kernel.
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