Improper locking in Linux kernel - CVE-2025-37893
Published: April 22, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU107735
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-2025-37893
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the build_prologue() function in arch/loongarch/net/bpf_jit.c. A local user can perform a denial of service (DoS) attack.
Affected software
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
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
How to mitigate CVE-2025-37893
Install update from vendor's website.
Linux kernel - update to 6.1.134
kernel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
python3-perf-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
python3-perf - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
perf-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
perf - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools-devel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-source - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-headers - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-devel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-debugsource - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
bpftool-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
bpftool - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
python3-perf-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
python3-perf - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
perf-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
perf - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools-devel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-tools - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-source - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-headers - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-devel - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-debugsource - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
kernel-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
bpftool-debuginfo - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
bpftool - addressed in versions 6.6.0-89.0.0.83, 6.6.0-89.0.0.94
External References
- https://git.kernel.org/stable/c/205a2182c51ffebaef54d643e3745e720cded08b
- https://git.kernel.org/stable/c/48b904de2408af5f936f0e03f48dfcddeab58aa0
- https://git.kernel.org/stable/c/7e2586991e36663c9bc48c828b83eab180ad30a9
- https://git.kernel.org/stable/c/b3ffad2f02db4aace6799fe0049508b8925eae45
- https://git.kernel.org/stable/c/c74d95a5679741ef428974ab788f5b0758dc78ae
- https://git.kernel.org/stable/c/e9ccb262b39ab01a5ac2e485b7996b8498e7b373
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.134