Improper resource shutdown or release in Linux kernel - CVE-2026-68475

Vulnerability identifier: #VU143601

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-68475

CWE-ID: CWE-404

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper resource shutdown or release in sunxi_reset_init() in the sunxi reset driver when handling an ioremap() failure. A local user can trigger initialization that causes ioremap() to fail to cause a resource leak.

Linux kernel
Ubuntu
linux-nvidia (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux-nvidia (Ubuntu package) - addressed in versions 5.15.0-1112.113, 5.15.0.1112.112
linux-gcp-7.0 (Ubuntu package) - addressed in versions 7.0.0-38.38~24.04.4, 7.0.0-1013.13~24.04.1, 7.0.0-1014.14~24.04.1
linux-azure-7.0 (Ubuntu package) - addressed in versions 7.0.0-1016.16~24.04.1, 7.0.0-1017.17~24.04.1

• https://git.kernel.org/stable/c/01e43f4e7d12dae6fa82ae1b2e91c9ce07e06cd8
• https://git.kernel.org/stable/c/1a8c89f8c112c75e84ff9a140f969e372aed0c9a
• https://git.kernel.org/stable/c/23af4ea217800a20c405d72e82b11e24e27721f3
• https://git.kernel.org/stable/c/6dc0c8cd9c8a84808c6df760024d2604bc6d31fe
• https://git.kernel.org/stable/c/82753ac86cb3d641b8634a61335fd0f04a61cc1a
• https://git.kernel.org/stable/c/b4d7333849839ff42e1bc802d5b5f63d71c65add
• https://git.kernel.org/stable/c/d826d3e04c5bd9d284ba29f330246a317a8a7023
• https://git.kernel.org/stable/c/ec836995c00a1968e403ef6beb53a73a9b0f318c

• Improper resource shutdown or release in Linux kernel reset driver
• Ubuntu update for linux-gcp-7.0
• Ubuntu update for linux-nvidia
• Ubuntu update for linux-azure-7.0