NULL pointer dereference in Linux kernel - CVE-2025-38092

Vulnerability identifier: #VU112117

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-2025-38092

CWE-ID: CWE-476

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 NULL pointer dereference within the opinfo_get_list() function in fs/smb/server/oplock.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
Ubuntu
bpftool
kernel-64k-devel
kernel-64k-debug-devel
kernel-64k-debug
kernel-64k
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-headers
kernel-devel
kernel-debug-devel
kernel-debug
kernel
linux (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-azure (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-oracle-6.14 (Ubuntu package)
linux-raspi (Ubuntu package)

Install update from vendor's repository.

bpftool - update to 6.6.102-5
kernel-64k-devel - update to 6.6.102-5
kernel-64k-debug-devel - update to 6.6.102-5
kernel-64k-debug - update to 6.6.102-5
kernel-64k - 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-debug - update to 6.6.102-5
kernel - update to 6.6.102-5
linux (Ubuntu package) - addressed in versions 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-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-azure (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

• https://git.kernel.org/stable/c/10379171f346e6f61d30d9949500a8de4336444a
• https://git.kernel.org/stable/c/334da674b25fdb7a1a4d4b89dcd7795144fc7e11
• https://git.kernel.org/stable/c/c78abb646ff823e7d22faad4cc0703d4484da9e8
• https://git.kernel.org/stable/c/cb7e06e9736d73007dc8dab7b353733bb37df86b

• NULL pointer dereference in Linux kernel smb server
• Ubuntu update for linux-oem-6.14
• Ubuntu update for linux-azure
• Ubuntu update for linux
• Ubuntu update for linux-realtime-6.14
• Ubuntu update for linux-aws-6.14
• Ubuntu update for linux-oracle-6.14
• Ubuntu update for linux-raspi
• Anolis OS update for kernel:6.6