Use-after-free in Linux kernel - CVE-2026-64246
Published: July 27, 2026
Vulnerability identifier: #VU139737
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-2026-64246
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 linkstation_poweroff_init() when initializing the linkstation poweroff driver. A local attacker can trigger the vulnerable initialization path to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-64246
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/2205275be9be981e70ff29610b0117d8853fac70
- https://git.kernel.org/stable/c/3928ae803dee044b01076c478c279c0bd54164cd
- https://git.kernel.org/stable/c/8eec545cde69e46e9a1d2b7d915ce4f5df85b3bd
- https://git.kernel.org/stable/c/93c7ee139721936b6fa717572e74d3994603ae13
- https://git.kernel.org/stable/c/c04d606f8b35ee7d3ed243f63893a607e9d6c0bc
- https://git.kernel.org/stable/c/cdda7d384c05485a232ae9a849f6445accb095bf
- https://git.kernel.org/stable/c/d109e72f3fbccb540473285d17d7519584f7f76e