Improper locking in Linux kernel - CVE-2025-38237

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Main Vulnerability Database Vulnerabilities #VU112805

Improper locking in Linux kernel - CVE-2025-38237

Published: July 11, 2025


Vulnerability identifier: #VU112805
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-2025-38237
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 fimc_is_hw_change_mode() function in drivers/media/platform/samsung/exynos4-is/fimc-is-regs.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Ubuntu
Anolis OS
linux-aws-fips (Ubuntu package)
linux (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-kvm (Ubuntu package)
linux-oracle-5.15 (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-headers
kernel-devel
kernel-debug-devel
kernel-debug
kernel
bpftool
linux-hwe-6.14 (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-gcp-6.14 (Ubuntu package)

How to mitigate CVE-2025-38237

Install update from vendor's repository.

linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0.156.89, 5.15.0-156.166+fips1, 5.15.0.1092.82, 5.15.0.1092.88, 5.15.0-1092.99+fips1, 5.15.0-1092.101+fips1
linux (Ubuntu package) - addressed in versions 5.15.0.156.135, 5.15.0.156.154, 5.15.0-156.166, 5.15.0.156.166~20.04.1, 5.15.0-156.166~20.04.1, 5.15.0.1045.45, 5.15.0-1045.45, 5.15.0.1045.45~20.04.1, 5.15.0-1045.45~20.04.1, 5.15.0.1056.59, 5.15.0-1056.60, 5.15.0.1075.74, 5.15.0-1075.83, 5.15.0.1086.82, 5.15.0.1086.84, 5.15.0-1086.89, 5.15.0-1086.89~20.04.1, 5.15.0.1086.89~20.04.1, 5.15.0.1087.87, 5.15.0-1087.88, 5.15.0-1087.91~20.04.1, 5.15.0.1087.91~20.04.1, 5.15.0-1087.93, 5.15.0-1087.93~20.04.1, 5.15.0.1087.93~20.04.1, 5.15.0.1089.88, 5.15.0-1089.95, 5.15.0.1090.86, 5.15.0-1090.96, 5.15.0.1092.88, 5.15.0.1092.95, 5.15.0-1092.99, 5.15.0.1092.99~20.04.1, 5.15.0-1092.99~20.04.1, 5.15.0-1092.101, 5.15.0.1092.101~20.04.1, 5.15.0-1092.101~20.04.1, 6.14.0-34.34, 6.14.0-1014.14~24.04.1, 6.14.0-1015.15, 6.14.0-1015.15~24.04.1, 6.14.0-1016.16, 6.14.0-1018.19
linux-nvidia-tegra-igx (Ubuntu package) - addressed in versions 5.15.0-1034.34, 5.15.0.1034.36
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1085.87, 5.15.0.1085.89, 5.15.0.1092.96, 5.15.0-1092.101
linux-kvm (Ubuntu package) - addressed in versions 5.15.0.1088.84, 5.15.0-1088.93
linux-oracle-5.15 (Ubuntu package) - addressed in versions 5.15.0.1090.96~20.04.1, 5.15.0-1090.96~20.04.1
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1096.81, 5.15.0-1096.105+fips1
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1096.94, 5.15.0-1096.105, 6.14.0-1007.7+25.10.1, 6.14.0-1014.14, 6.14.0-1014.14~24.04.1
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0-1096.105~20.04.1, 5.15.0.1096.105~20.04.1
python3-perf - update to 6.6.102-6
perf - update to 6.6.102-6
kernel-tools-libs-devel - update to 6.6.102-6
kernel-tools-libs - update to 6.6.102-6
kernel-tools - update to 6.6.102-6
kernel-headers - update to 6.6.102-6
kernel-devel - update to 6.6.102-6
kernel-debug-devel - update to 6.6.102-6
kernel-debug - update to 6.6.102-6
kernel - update to 6.6.102-6
bpftool - update to 6.6.102-6
linux-hwe-6.14 (Ubuntu package) - update to 6.14.0-34.34~24.04.1
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1014.14~24.04.1
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1015.15~24.04.1
linux-gcp-6.14 (Ubuntu package) - update to 6.14.0-1018.19~24.04.1

External References

Related Security Bulletins