Use-after-free in Linux kernel - CVE-2026-97901
Published: September 28, 2026
Vulnerability identifier: #VU152585
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97901
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 use-after-free in the generic netlink controller policy dump handling when advancing a pending policy dump. A local user can initiate and advance a policy dump to cause a denial of service.
Exploitation requires the target generic netlink family to be unregistered and its module unloaded while the dump remains pending.
Affected software
Linux kernel
How to mitigate CVE-2026-97901
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3