Use-after-free in Linux kernel - CVE-2026-90014
Published: September 16, 2026
Vulnerability identifier: #VU150267
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90014
CWE-ID: CWE-416
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 a use-after-free in the show_event_filters and show_event_triggers tracing files when reading files associated with a trace array while the trace array is removed. A local user can read one of these files while the associated trace array is removed to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90014
Install security update from vendor's repository.