Use of Uninitialized Variable in Linux kernel - CVE-2026-53332
Published: July 2, 2026
Vulnerability identifier: #VU136719
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2026-53332
CWE-ID: CWE-457
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to use of uninitialized data in the qcom-ngd-ctrl driver when callbacks are triggered during NGD driver probing before device initialization completes. A local attacker can trigger parallel remoteproc startup or hardware interrupt handling to cause a denial of service.
The issue can prevent affected boards from booting.
How to mitigate CVE-2026-53332
Install security update from vendor's repository.