Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98781

Vulnerability identifier: #VU157145

CSH Severity: Low

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98781

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to cause a device-reference leak that may lead to resource exhaustion.

The vulnerability exists due to a missing release of a device reference in the Linux kernel MediaTek DRM driver's mtk_drm_bind() function when binding a device that is not the mmsys master. A local privileged user can trigger the affected binding path to leave a reference acquired through of_find_device_by_node() unreleased, potentially exhausting resources through repeated triggering.

Linux kernel
SUSE Linux Micro
SUSE Linux Micro Extras
kernel-default
kernel-64kb
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-debugsource
kernel-default-devel-debuginfo

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-default - update to 6.4.0-159998.55.1
kernel-64kb - update to 6.4.0-159998.55.1
kernel-64kb-debugsource - update to 6.4.0-159998.55.1
kernel-64kb-devel - update to 6.4.0-159998.55.1
kernel-default-devel - update to 6.4.0-159998.55.1
kernel-syms - update to 6.4.0-159998.55.1
kernel-obs-build - update to 6.4.0-159998.55.1
kernel-obs-build-debugsource - update to 6.4.0-159998.55.1
kernel-default-debugsource - update to 6.4.0-159998.55.1
kernel-default-devel-debuginfo - update to 6.4.0-159998.55.1

• https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef
• https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70
• https://git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6
• https://git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3
• https://git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c

• Missing Release of Resource after Effective Lifetime in Linux kernel drm mediatek driver
• SUSE update for the Linux Kernel