Improper locking in Linux kernel - CVE-2025-21801

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Main Vulnerability Database Vulnerabilities #VU105143

Improper locking in Linux kernel - CVE-2025-21801

Published: February 28, 2025 / Updated: May 11, 2025


Vulnerability identifier: #VU105143
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2025-21801
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 ravb_suspend() and ravb_resume() functions in drivers/net/ethernet/renesas/ravb_main.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
openEuler
Ubuntu
kernel-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-debugsource
kernel-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-extra-modules
linux (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure (Ubuntu package)
linux-raspi (Ubuntu package)
linux-gcp (Ubuntu package)
linux-raspi-realtime (Ubuntu package)
linux-realtime (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-aws (Ubuntu package)

How to mitigate CVE-2025-21801

Install update from vendor's website.

Linux kernel - update to 6.13.2
kernel-devel - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-tools-debuginfo - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-tools - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-source - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-headers - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-tools-devel - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
perf - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
perf-debuginfo - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
python3-perf - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
python3-perf-debuginfo - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-debugsource - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-debuginfo - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
bpftool - addressed in versions 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
bpftool-debuginfo - addressed in versions 5.10.0-284.0.0.187, 6.6.0-113.0.0.105, 6.6.0-113.0.0.117, 6.6.0-113.0.0.119
kernel-extra-modules - update to 6.6.0-113.0.0.119
linux (Ubuntu package) - addressed in versions 6.8.0-64.67, 6.8.0-1031.31, 6.8.0-1032.34~22.04.1, 6.11.0-26.26, 6.11.0-26.26~24.04.1, 6.11.0-1010.10, 6.11.0-1013.13, 6.11.0-1015.15, 6.11.0-1015.15~24.04.1, 6.11.0-1022.22
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-64.67.1, 6.8.0-64.67.1~22.04.1, 6.8.0-1029.29, 6.8.0-1029.29~22.04.1
linux-hwe-6.8 (Ubuntu package) - update to 6.8.0-64.67~22.04.1
linux-aws-6.8 (Ubuntu package) - addressed in versions 6.8.0-1015.17, 6.8.0-1028.32, 6.8.0-1029.30, 6.8.0-1029.30~22.04.1, 6.8.0-1031.34, 6.8.0-1031.34.1, 6.8.0-1031.34~22.04.1, 6.8.0-1032.34~22.04.1
linux-azure (Ubuntu package) - addressed in versions 6.8.0-1022.23, 6.8.0-1034.39, 6.8.0-1034.39~22.04.1
linux-raspi (Ubuntu package) - update to 6.8.0-1031.35
linux-gcp (Ubuntu package) - addressed in versions 6.8.0-1033.35, 6.8.0-1033.35~22.04.1
linux-raspi-realtime (Ubuntu package) - update to 6.8.0-2026.27
linux-realtime (Ubuntu package) - update to 6.8.1-1025.26
linux-lowlatency (Ubuntu package) - addressed in versions 6.11.0-1014.15, 6.11.0-1014.15~24.04.1, 6.11.0-1016.17
linux-aws (Ubuntu package) - update to 6.11.0-1014.15

External References

Related Security Bulletins