NULL pointer dereference in Linux kernel - CVE-2026-31560

Vulnerability identifier: #VU127835

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-2026-31560

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in spi-dw-dma error logging when handling an error after a transaction finishes without a current message. A local user can trigger an error condition to cause a denial of service.

Linux kernel
Debian Linux
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
openEuler
kernel-livepatch-6_4_0-150700_7_62-rt
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_17-debugsource
kernel-livepatch-6_4_0-150700_53_63-default
kernel-livepatch-6_4_0-150700_53_63-default-debuginfo
bpftool
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-debuginfo
kernel
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-tools-devel
kernel-headers
kernel-tools
kernel-source
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
kernel-syms-rt
kernel-rt-devel
kernel-rt-devel-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt-debuginfo
kernel-rt-debuginfo
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
dlm-kmp-rt
kernel-rt
kernel-devel-rt
kernel-source-rt
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-docs
kernel-default-extra-debuginfo
kernel-default-extra
kernel-azure-devel-debuginfo
kernel-default-devel
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-default-debuginfo
kernel-default
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
dlm-kmp-default
ocfs2-kmp-default
cluster-md-kmp-default-debuginfo
gfs2-kmp-default
dlm-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-devel-debuginfo
kernel-azure-devel
kernel-64kb
kernel-macros
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-zfcpdump
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-debugsource
kernel-default-base
linux (Debian package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-livepatch-6_4_0-150700_7_62-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7_Update_17-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_63-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_63-default-debuginfo - update to 1-150700.15.3.1
bpftool - update to 5.10.0-314.0.0.217
python3-perf-debuginfo - update to 5.10.0-314.0.0.217
python3-perf - update to 5.10.0-314.0.0.217
perf-debuginfo - update to 5.10.0-314.0.0.217
perf - update to 5.10.0-314.0.0.217
kernel-tools-debuginfo - update to 5.10.0-314.0.0.217
kernel - update to 5.10.0-314.0.0.217
bpftool-debuginfo - update to 5.10.0-314.0.0.217
kernel-debuginfo - update to 5.10.0-314.0.0.217
kernel-debugsource - update to 5.10.0-314.0.0.217
kernel-devel - update to 5.10.0-314.0.0.217
kernel-tools-devel - update to 5.10.0-314.0.0.217
kernel-headers - update to 5.10.0-314.0.0.217
kernel-tools - update to 5.10.0-314.0.0.217
kernel-source - update to 5.10.0-314.0.0.217
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.62.1
kernel-rt-debugsource - update to 6.4.0-150700.7.62.1
kernel-syms-rt - update to 6.4.0-150700.7.62.1
kernel-rt-devel - update to 6.4.0-150700.7.62.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.62.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt - update to 6.4.0-150700.7.62.1
kernel-rt - update to 6.4.0-150700.7.62.1
kernel-devel-rt - update to 6.4.0-150700.7.62.1
kernel-source-rt - update to 6.4.0-150700.7.62.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.63.1
kernel-azure-debugsource - update to 6.4.0-150700.53.63.1
kernel-azure - update to 6.4.0-150700.53.63.1
kernel-syms - update to 6.4.0-150700.53.63.1
kernel-obs-build - update to 6.4.0-150700.53.63.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.63.1
kernel-docs - update to 6.4.0-150700.53.63.1
kernel-source - update to 6.4.0-150700.53.63.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.63.1
kernel-default-extra - update to 6.4.0-150700.53.63.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.63.1
kernel-default-devel - update to 6.4.0-150700.53.63.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.63.1
kernel-default-livepatch - update to 6.4.0-150700.53.63.1
kernel-default-debuginfo - update to 6.4.0-150700.53.63.1
kernel-default - update to 6.4.0-150700.53.63.1
cluster-md-kmp-default - update to 6.4.0-150700.53.63.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.63.1
dlm-kmp-default - update to 6.4.0-150700.53.63.1
ocfs2-kmp-default - update to 6.4.0-150700.53.63.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.63.1
gfs2-kmp-default - update to 6.4.0-150700.53.63.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.63.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.63.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.63.1
kernel-azure-devel - update to 6.4.0-150700.53.63.1
kernel-64kb - update to 6.4.0-150700.53.63.1
kernel-devel - update to 6.4.0-150700.53.63.1
kernel-macros - update to 6.4.0-150700.53.63.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.63.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.63.1
kernel-64kb-devel - update to 6.4.0-150700.53.63.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.63.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.63.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.63.1
kernel-zfcpdump - update to 6.4.0-150700.53.63.1
reiserfs-kmp-default - update to 6.4.0-150700.53.63.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.63.1
kernel-default-debugsource - update to 6.4.0-150700.53.63.1
kernel-default-base - update to 6.4.0-150700.53.63.1.150700.17.37.1
linux (Debian package) - update to 6.12.94-1

• https://git.kernel.org/stable/c/184f5aaf72f1f1c73e66bae0b8d28e81c2f2a72f
• https://git.kernel.org/stable/c/3b46d61890632c8f8b117147b6923bff4b42ccb7

• NULL pointer dereference in Linux kernel spi driver
• openEuler 22.03 LTS SP4 update for kernel
• Debian update for linux
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel