Input validation error in Linux kernel - CVE-2025-37751

Vulnerability identifier: #VU108397

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-2025-37751

CWE-ID: CWE-20

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 input validation within the init_amd_bd() function in arch/x86/kernel/cpu/amd.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
Ubuntu
kernel-livepatch-SLE15-SP7-RT_Update_9-debugsource
kernel-livepatch-6_4_0-150700_7_31-rt
kernel-livepatch-6_4_0-150700_7_31-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_31-default-debuginfo
kernel-livepatch-SLE15-SP7_Update_9-debugsource
kernel-livepatch-6_4_0-150700_53_31-default
kernel-source-rt
kernel-devel-rt
kernel-syms-rt
kernel-rt
kernel-rt-debugsource
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-rt-debuginfo
ocfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt-devel
cluster-md-kmp-rt
dlm-kmp-rt
kernel-rt-devel-debuginfo
gfs2-kmp-rt-debuginfo
kernel-syms-azure
kernel-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-source-azure
kernel-devel-azure
kernel-default-livepatch-devel
kernel-default-livepatch
cluster-md-kmp-default
kernel-default-extra
kernel-default-extra-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-64kb
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel-debuginfo
kernel-64kb-devel
kernel-default
kernel-default-debugsource
kernel-default-devel-debuginfo
kernel-default-devel
kernel-default-debuginfo
kernel-macros
kernel-devel
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-docs
gfs2-kmp-default
ocfs2-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
ocfs2-kmp-default
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-source
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-zfcpdump-debugsource
kernel-default-base
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 6.14.3
kernel-livepatch-SLE15-SP7-RT_Update_9-debugsource - update to 1-150700.1.3.2
kernel-livepatch-6_4_0-150700_7_31-rt - update to 1-150700.1.3.2
kernel-livepatch-6_4_0-150700_7_31-rt-debuginfo - update to 1-150700.1.3.2
kernel-livepatch-6_4_0-150700_53_31-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_9-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_31-default - update to 1-150700.15.3.1
kernel-source-rt - update to 6.4.0-150700.7.31.1
kernel-devel-rt - update to 6.4.0-150700.7.31.1
kernel-syms-rt - update to 6.4.0-150700.7.31.1
kernel-rt - update to 6.4.0-150700.7.31.2
kernel-rt-debugsource - update to 6.4.0-150700.7.31.2
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
ocfs2-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-debuginfo - update to 6.4.0-150700.7.31.2
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
gfs2-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-devel - update to 6.4.0-150700.7.31.2
cluster-md-kmp-rt - update to 6.4.0-150700.7.31.2
dlm-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.31.2
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
kernel-syms-azure - update to 6.4.0-150700.20.27.1
kernel-azure - update to 6.4.0-150700.20.27.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.27.1
kernel-azure-devel - update to 6.4.0-150700.20.27.1
kernel-azure-debugsource - update to 6.4.0-150700.20.27.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.27.1
kernel-source-azure - update to 6.4.0-150700.20.27.1
kernel-devel-azure - update to 6.4.0-150700.20.27.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.31.1
kernel-default-livepatch - update to 6.4.0-150700.53.31.1
cluster-md-kmp-default - update to 6.4.0-150700.53.31.1
kernel-default-extra - update to 6.4.0-150700.53.31.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.31.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.31.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.31.1
kernel-64kb - update to 6.4.0-150700.53.31.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.31.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.31.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.31.1
kernel-64kb-devel - update to 6.4.0-150700.53.31.1
kernel-default - update to 6.4.0-150700.53.31.1
kernel-default-debugsource - update to 6.4.0-150700.53.31.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.31.1
kernel-default-devel - update to 6.4.0-150700.53.31.1
kernel-default-debuginfo - update to 6.4.0-150700.53.31.1
kernel-macros - update to 6.4.0-150700.53.31.1
kernel-devel - update to 6.4.0-150700.53.31.1
kernel-zfcpdump - update to 6.4.0-150700.53.31.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.31.1
kernel-docs - update to 6.4.0-150700.53.31.1
gfs2-kmp-default - update to 6.4.0-150700.53.31.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.31.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.31.1
dlm-kmp-default - update to 6.4.0-150700.53.31.1
ocfs2-kmp-default - update to 6.4.0-150700.53.31.1
reiserfs-kmp-default - update to 6.4.0-150700.53.31.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.31.1
kernel-source - update to 6.4.0-150700.53.31.1
kernel-syms - update to 6.4.0-150700.53.31.1
kernel-obs-build - update to 6.4.0-150700.53.31.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.31.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.31.1
kernel-default-base - update to 6.4.0-150700.53.31.1.150700.17.21.1
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1
linux-azure (Ubuntu package) - update to 6.14.0-1007.7

• https://git.kernel.org/stable/c/1b518f73f1b6f59e083ec33dea22d9a1a275a970
• https://git.kernel.org/stable/c/f0df00ebc57f803603f2a2e0df197e51f06fbe90
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.3

• Input validation error in Linux kernel kernel cpu
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel