SB2026102288 - Missing Release of Resource after Effective Lifetime in Linux kernel drm nouveau driver

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-98513)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: 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]

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.

Remediation

Install update from vendor's website.

References

• 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