Use-after-free in Linux kernel - CVE-2026-74725
Published: August 24, 2026
Vulnerability identifier: #VU144607
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74725
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to use-after-free in the enic driver teardown work handling in enic_remove() when a TX timeout fires during device removal. A local attacker can trigger a TX timeout race to cause a denial of service.
The issue is caused by a race condition in which tx_hang_reset may be scheduled after the network device has been freed.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-74725
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.105-1
linux (Debian package) - update to 6.12.105-1