Use-after-free in Ubuntu and linux-image-generic-6.8 (Ubuntu package) - #VU115967
Published: September 19, 2025
Vulnerability identifier: #VU115967
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Canonical Ltd.
Affected software:
Ubuntu
linux-image-generic-6.8 (Ubuntu package)
Ubuntu
linux-image-generic-6.8 (Ubuntu package)
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the AF_UNIX socket garbage collection implementation on Ubuntu Noble's 6.8 kernel. A local user can trigger a use-after-free error and crash the OS kernel or execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.