Improper resource shutdown or release in Linux kernel - CVE-2026-68084

Vulnerability identifier: #VU142242

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-2026-68084

CWE-ID: CWE-404

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the tsi148_remove() function in the vme_user tsi148 bridge driver when unbinding the device or unloading the module. A local user can trigger device removal operations to cause a denial of service.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux (Ubuntu package) - addressed in versions 7.0.0-31.31, 7.0.0-31.31.1, 7.0.0-31.31~24.04.1, 7.0.0-1006.7, 7.0.0-1011.11~24.04.1, 7.0.0-1012.12, 7.0.0-1012.12~24.04.1
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1013.13

• https://git.kernel.org/stable/c/151edde741f8bc7f2931c5f44ab376d32b0c8beb
• https://git.kernel.org/stable/c/18be0ad31b161a8b6fbc90d14355ad40c061b6b0
• https://git.kernel.org/stable/c/36902ab588ccc2fa07994adf6c5f51cbfe379177
• https://git.kernel.org/stable/c/c6cda17e98545980e42291fc4282daa8a8ebe384
• https://git.kernel.org/stable/c/e3ceafa6d8ee6b3a0f7fabe7a551fda909edbd46
• https://git.kernel.org/stable/c/eef048dd77ebfbf99d7c28f9e9dd331d2af7b6f6

• Improper resource shutdown or release in Linux kernel staging vme_user driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux
• Ubuntu update for linux-gcp-7.0