Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98513

Vulnerability identifier: #VU156814

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-2026-98513

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to keep the graphics device powered on unnecessarily, increasing power consumption.

The vulnerability exists due to a missing release of a runtime power-management reference in the Linux kernel nouveau driver's nouveau_connector_detect() function when EDID retrieval fails. A local user can trigger a failure in nvif_outp_edid_get() during connector detection to keep the device powered on until the next successful detection.

Linux kernel
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)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
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

• https://git.kernel.org/stable/c/1e04611d3735543bd80a67d9d13dc13f503746fb
• https://git.kernel.org/stable/c/59aa1f8c95941e623891d46c805e8fb1257b5a3d
• https://git.kernel.org/stable/c/780ad8e4df9f767806587d33b42372acf8fbe5e6
• https://git.kernel.org/stable/c/87c2f8ce1100ccbbc40bfab067741edbd1f0ef02

• Missing Release of Resource after Effective Lifetime in Linux kernel drm nouveau driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more