Memory leak in Linux kernel - CVE-2026-97921
Published: September 28, 2026
Vulnerability identifier: #VU152547
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-2026-97921
CWE-ID: CWE-401
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 memory leak in __create_val_field() when processing histogram triggers containing unsupported field modifiers. A local user can write a crafted histogram trigger with a disallowed modifier to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-97921
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3