Improper locking in Linux kernel - CVE-2025-38282

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU112797

Improper locking in Linux kernel - CVE-2025-38282

Published: July 11, 2025


Vulnerability identifier: #VU112797
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-2025-38282
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 kernfs_should_drain_open_files() function in fs/kernfs/file.c, within the kernfs_break_active_protection() function in fs/kernfs/dir.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Debian Linux
Ubuntu
Anolis OS
openEuler
linux (Debian package)
bpftool
kernel
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-source
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
kernel-tools
python3-perf-debuginfo
kernel-extra-modules
kernel-64k-devel
kernel-debug
kernel-tools-libs-devel
kernel-tools-libs
kernel-debug-devel
kernel-64k
kernel-64k-debug
kernel-64k-debug-devel
linux (Ubuntu package)
linux-aws-fips (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-xilinx (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-ibm (Ubuntu package)
linux-nvidia-lowlatency (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-gcp-fips (Ubuntu package)
linux-gcp-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-raspi-realtime (Ubuntu package)
linux-realtime-6.8 (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-oracle-6.14 (Ubuntu package)
linux-raspi (Ubuntu package)

How to mitigate CVE-2025-38282

Install update from vendor's repository.

linux (Debian package) - update to 6.1.147-1
bpftool - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
bpftool-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-debugsource - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-devel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-headers - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-source - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools-devel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
perf - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
perf-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
python3-perf - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
python3-perf-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-extra-modules - update to 6.6.0-129.0.0.127
kernel-64k-devel - update to 6.6.102-5
kernel-debug - update to 6.6.102-5
python3-perf - update to 6.6.102-5
perf - update to 6.6.102-5
kernel-tools-libs-devel - update to 6.6.102-5
kernel-tools-libs - update to 6.6.102-5
kernel-tools - update to 6.6.102-5
kernel-headers - update to 6.6.102-5
kernel-devel - update to 6.6.102-5
kernel-debug-devel - update to 6.6.102-5
kernel - update to 6.6.102-5
kernel-64k - update to 6.6.102-5
kernel-64k-debug - update to 6.6.102-5
bpftool - update to 6.6.102-5
kernel-64k-debug-devel - update to 6.6.102-5
linux (Ubuntu package) - addressed in versions 6.8.0-100.100, 6.8.0-1047.51, 6.14.0-32.32, 6.14.0-32.32.1, 6.14.0-32.32.1~24.04.1, 6.14.0-1012.12~24.04.1, 6.14.0-1013.13, 6.14.0-1016.17, 6.14.0-1016.17~24.04.1
linux-aws-fips (Ubuntu package) - addressed in versions 6.8.0-100.100+fips1, 6.8.0-1046.49+fips1
linux-lowlatency (Ubuntu package) - update to 6.8.0-100.100.1
linux-hwe-6.8 (Ubuntu package) - addressed in versions 6.8.0-100.100.1~22.04.1, 6.8.0-100.100~22.04.1
linux-xilinx (Ubuntu package) - addressed in versions 6.8.0.1023.24, 6.8.0-1023.24
linux-aws (Ubuntu package) - addressed in versions 6.8.0-1030.33, 6.8.0-1043.44, 6.8.0-1043.44~22.04.1, 6.8.0-1046.49~22.04.1
linux-gcp (Ubuntu package) - addressed in versions 6.8.0-1043.48, 6.8.0-1047.50~22.04.2
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1044.44, 6.8.0-1044.44~22.04.1
linux-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1046.49.1
linux-azure (Ubuntu package) - addressed in versions 6.8.0-1046.52, 6.14.0-1012.12
linux-azure-fips (Ubuntu package) - update to 6.8.0-1046.52+fips1
linux-gcp-fips (Ubuntu package) - update to 6.8.0-1047.50+fips1
linux-gcp-6.8 (Ubuntu package) - update to 6.8.0-1047.50~22.04.2
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1051.57~22.04.1
linux-raspi-realtime (Ubuntu package) - addressed in versions 6.8.0-2037.38, 6.8.1-1041.42
linux-realtime-6.8 (Ubuntu package) - update to 6.8.1-1041.42~22.04.1
linux-aws-6.14 (Ubuntu package) - addressed in versions 6.14.0-32.32~24.04.1, 6.14.0-1013.13~24.04.1
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1012.12
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1012.12~24.04.1
linux-oracle-6.14 (Ubuntu package) - update to 6.14.0-1013.13~24.04.1
linux-raspi (Ubuntu package) - update to 6.14.0-1014.14

External References

Related Security Bulletins