NULL pointer dereference in Linux kernel - CVE-2025-39725

Vulnerability identifier: #VU114921

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-2025-39725

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 get_hwpoison_page() function in mm/memory-failure.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
openEuler
Ubuntu
kernel-tools
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-source
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
kernel-headers
kernel-extra-modules
linux (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-gcp-6.14 (Ubuntu package)

Install update from vendor's repository.

kernel-tools - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
python2-perf - update to 4.19.90-2511.2.0.0351
python2-perf-debuginfo - update to 4.19.90-2511.2.0.0351
python3-perf - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
python3-perf-debuginfo - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
perf-debuginfo - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
perf - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-tools-devel - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-tools-debuginfo - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-source - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-devel - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-debugsource - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-debuginfo - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
bpftool-debuginfo - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
bpftool - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel - addressed in versions 4.19.90-2511.2.0.0351, 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-headers - addressed in versions 5.10.0-288.0.0.190, 5.10.0-288.0.0.191, 6.6.0-115.0.0.108, 6.6.0-115.0.0.119, 6.6.0-115.0.0.121
kernel-extra-modules - update to 6.6.0-115.0.0.121
linux (Ubuntu package) - addressed in versions 6.14.0-36.36, 6.14.0-36.36~24.04.1, 6.14.0-1016.16~24.04.1, 6.14.0-1017.17, 6.14.0-1020.21
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1016.16
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1016.16~24.04.1
linux-azure (Ubuntu package) - addressed in versions 6.14.0-1017.17, 6.14.0-1017.17~24.04.1
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1017.17~24.04.1
linux-gcp-6.14 (Ubuntu package) - addressed in versions 6.14.0-1018.18, 6.14.0-1020.21~24.04.1

• https://git.kernel.org/stable/c/656eaddbc952e1baae2f69281c22debe22140312
• https://git.kernel.org/stable/c/9f1e8cd0b7c4c944e9921b52a6661b5eda2705ab
• https://git.kernel.org/stable/c/c1101113d45838a823188ae25c61af97552a28ae

• NULL pointer dereference in Linux kernel mm
• openEuler 22.03 LTS SP3 update for kernel
• openEuler 24.03 LTS SP2 update for kernel
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel
• openEuler 22.03 LTS SP4 update for kernel
• openEuler 20.03 LTS SP4 update for kernel
• Ubuntu update for linux-oem-6.14
• Ubuntu update for linux-realtime-6.14
• Ubuntu update for linux
• Ubuntu update for linux-aws-6.14
• Ubuntu update for linux-gcp-6.14
• Ubuntu update for linux-azure