Improper locking in Linux kernel - CVE-2025-68236

Vulnerability identifier: #VU120083

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-2025-68236

CWE-ID: CWE-667

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 improper locking within the ufs_qcom_suspend() function in drivers/ufs/host/ufs-qcom.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
Ubuntu
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-headers
kernel-devel
kernel-debug-devel
kernel-debug
kernel
bpftool
linux (Ubuntu package)
linux-gcp-6.17 (Ubuntu package)
linux-realtime-6.17 (Ubuntu package)
linux-raspi (Ubuntu package)
linux-azure (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

Install update from vendor's repository.

python3-perf - update to 6.6.102-7
perf - update to 6.6.102-7
kernel-tools-libs-devel - update to 6.6.102-7
kernel-tools-libs - update to 6.6.102-7
kernel-tools - update to 6.6.102-7
kernel-headers - update to 6.6.102-7
kernel-devel - update to 6.6.102-7
kernel-debug-devel - update to 6.6.102-7
kernel-debug - update to 6.6.102-7
kernel - update to 6.6.102-7
bpftool - update to 6.6.102-7
linux (Ubuntu package) - addressed in versions 6.17.0-19.19, 6.17.0-19.19~24.04.2, 6.17.0-1009.9, 6.17.0-1009.9~24.04.1, 6.17.0-1009.9~24.04.2
linux-gcp-6.17 (Ubuntu package) - addressed in versions 6.17.0-1008.9, 6.17.0-1009.9~24.04.3
linux-realtime-6.17 (Ubuntu package) - update to 6.17.0-1008.9~24.04.1
linux-raspi (Ubuntu package) - update to 6.17.0-1010.10
linux-azure (Ubuntu package) - addressed in versions 6.17.0-1010.10, 6.17.0-1010.10~24.04.1
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1017.17

• https://git.kernel.org/stable/c/5127be409c6c3815c4a7d8f6d88043e44f9b9543
• https://git.kernel.org/stable/c/b712f234a74c1f5ce70b5d7aec3fc2499c258141

• Improper locking in Linux kernel ufs host driver
• Ubuntu update for linux
• Ubuntu update for linux-gcp-6.17
• Ubuntu update for linux-realtime-6.17
• Ubuntu update for linux-azure
• Ubuntu update for linux-raspi
• Ubuntu update for linux-oem-6.17
• Anolis OS update for kernel:6.6