Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-53114

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Main Vulnerability Database Vulnerabilities #VU135194

Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-53114

Published: June 25, 2026


Vulnerability identifier: #VU135194
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-53114
CWE-ID: CWE-754
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of a function call in the amd ibs nmi handler when processing perf events. A local user can create a perf event that triggers the unsafe call from nmi context to cause a denial of service.

The issue occurs when raw sampling is used for IBS perf events.


Affected software

Linux kernel
openEuler
Ubuntu
kernel-tools
kernel-headers
kernel-extra-modules
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
kernel-source
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo
linux (Ubuntu package)
linux-ibm (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-bos (Ubuntu package)

How to mitigate CVE-2026-53114

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-tools - update to 6.6.0-145.3.26.157
kernel-headers - update to 6.6.0-145.3.26.157
kernel-extra-modules - update to 6.6.0-145.3.26.157
kernel-devel - update to 6.6.0-145.3.26.157
kernel-debugsource - update to 6.6.0-145.3.26.157
kernel-debuginfo - update to 6.6.0-145.3.26.157
bpftool-debuginfo - update to 6.6.0-145.3.26.157
bpftool - update to 6.6.0-145.3.26.157
kernel - update to 6.6.0-145.3.26.157
kernel-source - update to 6.6.0-145.3.26.157
kernel-tools-debuginfo - update to 6.6.0-145.3.26.157
kernel-tools-devel - update to 6.6.0-145.3.26.157
perf - update to 6.6.0-145.3.26.157
perf-debuginfo - update to 6.6.0-145.3.26.157
python3-perf - update to 6.6.0-145.3.26.157
python3-perf-debuginfo - update to 6.6.0-145.3.26.157
linux (Ubuntu package) - addressed in versions 7.0.0-28.28, 7.0.0-28.28.1, 7.0.0-1003.4, 7.0.0-1008.8
linux-ibm (Ubuntu package) - addressed in versions 7.0.0-1008.8, 7.0.0-1010.10
linux-aws (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1015.15
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1010.10
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1009.9
linux-nvidia (Ubuntu package) - addressed in versions 7.0.0-1016.16, 7.0.0-1016.16~24.04.1
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2016.16

External References

Related Security Bulletins