Improper control of a resource through its lifetime in Linux kernel - CVE-2026-93275
Published: September 25, 2026
Vulnerability identifier: #VU152128
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93275
CWE-ID: CWE-664
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a kernel warning.
The vulnerability exists due to improper resource lifecycle management in the Intel PT perf event stop and start callbacks when group throttling invokes callbacks without update flags. A local user can cause an Intel PT event to be throttled to trigger a kernel warning.
The issue can occur when AUX area sampling is used.
Affected software
Linux kernel
How to mitigate CVE-2026-93275
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3