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, 5:17 p.m.
Last Modified :
July 14, 2026, 3:26 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Cache permission at event-initialization.
- NMI handler should use cached flag.
- Do not call perf_allow_kernel() from NMI.
- Update the Linux kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53114.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53114 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53114
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-53114 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53114 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '50a53b60e141d7e31368a87e222e4dd5597bd4ae', 'lessThan': '2783ed2442ce69ae240b787aee6dae801cef7aec', 'versionType': 'git'}, {'status': 'affected', 'version': '50a53b60e141d7e31368a87e222e4dd5597bd4ae', 'lessThan': '0584e74fa2b27e9e722cfb5b579f79263df20040', 'versionType': 'git'}, {'status': 'affected', 'version': '50a53b60e141d7e31368a87e222e4dd5597bd4ae', 'lessThan': 'b0a09142622a994c4f4088c3f61db5da87cfc711', 'versionType': 'git'}], 'programFiles': ['arch/x86/events/amd/ibs.c', 'arch/x86/events/perf_event_flags.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['arch/x86/events/amd/ibs.c', 'arch/x86/events/perf_event_flags.h'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040 Added Reference https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec Added Reference https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711