Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98779

Vulnerability identifier: #VU157143

CSH Severity: Low

CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98779

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a device resource leak that may lead to a denial of service.

The vulnerability exists due to missing release of registered child platform devices in the AMDGPU driver's acp_hw_init() function when power-domain attachment fails or ACP reset or clock enable operations time out after successful MFD device registration. A local user can potentially trigger an affected initialization failure to leave child devices registered and consume system resources, which may impair system availability.

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/2b9a53940a2bc063ea4cd09ee49220a503a0170c
• https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113
• https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc
• https://git.kernel.org/stable/c/d700c26ed64bd3c26e4aa7679b9d5f3333c3747a
• https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c

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