Resource management error in Linux kernel - CVE-2025-21803

Vulnerability identifier: #VU105155

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21803

CWE-ID: CWE-399

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the enable_gpe_wakeup() function in arch/loongarch/power/platform.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
openEuler
kernel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool

Install update from vendor's website.

Linux kernel - update to 6.6.76
kernel - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
python3-perf-debuginfo - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
python3-perf - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
perf-debuginfo - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
perf - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-tools-devel - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-tools-debuginfo - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-tools - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-source - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-headers - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-devel - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-debugsource - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
kernel-debuginfo - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
bpftool-debuginfo - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89
bpftool - addressed in versions 6.6.0-84.0.0.78, 6.6.0-84.0.0.89

• https://git.kernel.org/stable/c/194d26a5a43c26dc98a9b4e2c1d521dcb84dd1bf
• https://git.kernel.org/stable/c/26c0a2d93af55d30a46d5f45d3e9c42cde730168
• https://git.kernel.org/stable/c/8682a71a7f6de7c683f31b4334b04e19685a05f9
• https://git.kernel.org/stable/c/d49ab6857d98266010f3446c9c2063014db5b654
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.76

• Resource management error in Linux kernel loongarch power
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel