NULL pointer dereference in Linux kernel - CVE-2026-64480
Published: July 27, 2026
Vulnerability identifier: #VU139458
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-2026-64480
CWE-ID: CWE-476
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 NULL pointer dereference in the ALSA ice1712 driver control creation logic when handling failed snd_ctl_new1() allocations. A local user can trigger memory allocation failure and reach code paths that dereference a NULL pointer to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-64480
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/2b929b91b0f3bc6de8a844370049cd99ee8e31ff
- https://git.kernel.org/stable/c/38a7cc46370a57122fb29c4bfe48a851c0c64459
- https://git.kernel.org/stable/c/57d59be545b309d4bb54ac472b15d1e67f254d95
- https://git.kernel.org/stable/c/69bf1dfa3215524c4ae255bb9dce0770875abbeb
- https://git.kernel.org/stable/c/71b87108ad93d433cdb20704a8dc8852304cf2c2
- https://git.kernel.org/stable/c/d34ad480b8896d2b486e2cf29ce1790326cad205