Memory leak in Linux kernel - CVE-2026-90424

Vulnerability identifier: #VU151048

CSH Severity: Low

CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-90424

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a memory leak.

The vulnerability exists due to improper resource cleanup in the Tegra241 CMDQV VINTF initialization and removal routines when handling failed VINTF0 initialization or logical VCMDQ preallocation. A local user can trigger these failure paths to cause a memory leak.

VINTF0 can remain unpublished to the VINTF array, preventing probe-failure cleanup from reaching it.

Linux kernel
Debian Linux
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux (Debian package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17
linux (Debian package) - update to 6.12.115-2

• https://git.kernel.org/stable/c/1d2271d7df5230e4ce36bdafd17524bd004f3b3f
• https://git.kernel.org/stable/c/417190bde0fda4ee857999a722ca90163fbec587
• https://git.kernel.org/stable/c/f40f3144477314b489e4bc209c06cb51679fe82b

• Memory leak in Linux kernel arm arm-smmu-v3 driver
• Debian update for linux
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more