Use of Uninitialized Variable in Linux kernel - CVE-2026-90428
Published: September 18, 2026
Vulnerability identifier: #VU151052
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90428
CWE-ID: CWE-457
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to use of an uninitialized resource in the Tegra241 CMDQV error interrupt handler when handling a latched error interrupt after a kexec. A local privileged user can initiate a kexec while CMDQV is enabled with a latched error to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90428
Install security update from vendor's repository.