NULL Pointer Dereference in Linux kernel - CVE-2026-23382

Vulnerability identifier: #VU124453

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-23382

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper pointer validation in HID subsystem raw_event callbacks when processing input from unclaimed HID devices. A remote attacker can send specially crafted HID reports to trigger a NULL pointer dereference and crash the system.

Exploitation does not require user interaction or prior authentication.

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
Debian Linux
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Live Patching
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
Public Cloud Module
Ubuntu
kgraft-patch-4_12_14-122_299-default
kernel-livepatch-6_4_0-150700_7_54-rt
kernel-livepatch-SLE15-SP7-RT_Update_15-debugsource
kernel-livepatch-6_4_0-150700_7_54-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_55-default
kernel-livepatch-SLE15-SP7_Update_15-debugsource
kernel-livepatch-6_4_0-150700_53_55-default-debuginfo
kernel-default-base
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-default-man
kernel-devel
kernel-macros
kernel-source
dlm-kmp-default
kernel-default-devel
dlm-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debugsource
kernel-default
kernel-syms
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
ocfs2-kmp-default
gfs2-kmp-default
kernel-default-debuginfo
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-raspi (Ubuntu package)
linux-ibm-5.15 (Ubuntu package)
linux-intel-iotg (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-gcp-5.15 (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure-fde (Ubuntu package)
linux (Debian package)
gfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-devel-rt
kernel-source-rt
dlm-kmp-rt
kernel-rt
cluster-md-kmp-rt
kernel-rt-devel
kernel-syms-rt
gfs2-kmp-rt
kernel-rt-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt-devel-debuginfo
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-default-extra-debuginfo
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-obs-build-debugsource
kernel-obs-build
kernel-azure-devel-debuginfo
kernel-64kb-debuginfo
kernel-docs
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-64kb-devel
kernel-64kb
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-default-extra
kernel-default-livepatch
kernel-default-livepatch-devel
linux-fips (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle-6.8 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure-fde-6.8 (Ubuntu package)
linux-gcp-fips (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kgraft-patch-4_12_14-122_299-default - update to 1-8.3.1
kernel-livepatch-6_4_0-150700_7_54-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_15-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_54-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_55-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_15-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_55-default-debuginfo - update to 1-150700.15.3.1
kernel-default-base - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1.150700.17.33.1
kernel-default-kgraft - update to 4.12.14-122.299.1
kernel-default-kgraft-devel - update to 4.12.14-122.299.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-default-man - update to 4.12.14-122.299.1
kernel-devel - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-macros - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-source - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
dlm-kmp-default - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-default-devel - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-default-base-debuginfo - update to 4.12.14-122.299.1
kernel-default-debugsource - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-default - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-syms - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
gfs2-kmp-default - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.299.1, 6.4.0-150700.53.55.1
linux (Ubuntu package) - addressed in versions 5.15.0.184.155, 5.15.0-184.194, 5.15.0-184.194~20.04.1, 5.15.0.186.166, 5.15.0-186.196, 5.15.0-186.196~20.04.1, 5.15.0.1075.78, 5.15.0-1075.79, 5.15.0.1095.94, 5.15.0-1095.103, 5.15.0.1104.100, 5.15.0-1104.109, 5.15.0.1108.107, 5.15.0-1108.114, 5.15.0.1111.115, 5.15.0-1111.120+fips1, 5.15.0.1112.102, 5.15.0.1112.109, 5.15.0-1112.122, 5.15.0-1112.122+fips1, 6.8.0-136.136, 6.8.0-1046.50, 6.8.0-1059.67, 6.8.0-1064.72, 6.8.0-1064.72~22.04.1, 6.8.1-1056.57, 6.8.1-1056.57~22.04.2
linux-aws (Ubuntu package) - addressed in versions 5.15.0.186.109, 5.15.0-186.196+fips1, 5.15.0.1106.103, 5.15.0-1106.110, 5.15.0.1107.107, 5.15.0-1107.108, 5.15.0.1112.108, 5.15.0.1112.115, 5.15.0-1112.119, 5.15.0-1112.119+fips1, 5.15.0-1112.119~20.04.1, 6.8.0-1061.64+1
linux-nvidia-tegra (Ubuntu package) - addressed in versions 5.15.0-1053.53, 5.15.0.1053.55, 5.15.0.1064.64, 5.15.0-1064.66
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1064.66~20.04.1
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1104.106, 5.15.0.1104.108, 5.15.0-1107.113~20.04.1
linux-raspi (Ubuntu package) - addressed in versions 5.15.0.1106.104, 5.15.0-1106.109, 6.8.0-1061.65, 6.8.0-2050.52
linux-ibm-5.15 (Ubuntu package) - update to 5.15.0-1106.110~20.04.1
linux-intel-iotg (Ubuntu package) - addressed in versions 5.15.0.1107.106, 5.15.0-1107.113
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1109.105, 5.15.0-1109.115, 5.15.0.1117.115, 5.15.0-1117.126, 6.8.0-1063.71, 6.8.0-1063.71~22.04.1
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0-1109.115~20.04.1, 5.15.0-1117.126~20.04.1, 5.15.0-1117.126~20.04.2
linux-gcp-5.15 (Ubuntu package) - update to 5.15.0-1112.122~20.04.1
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1117.102, 5.15.0-1117.126+fips1, 6.8.0-1063.71+fips2
linux-azure-fde (Ubuntu package) - addressed in versions 5.15.0-1117.126, 6.8.0-1062.69
linux (Debian package) - addressed in versions 6.1.170-1, 6.12.85-1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.54.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.54.1
kernel-devel-rt - update to 6.4.0-150700.7.54.1
kernel-source-rt - update to 6.4.0-150700.7.54.1
dlm-kmp-rt - update to 6.4.0-150700.7.54.1
kernel-rt - update to 6.4.0-150700.7.54.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.54.1
kernel-rt-devel - update to 6.4.0-150700.7.54.1
kernel-syms-rt - update to 6.4.0-150700.7.54.1
gfs2-kmp-rt - update to 6.4.0-150700.7.54.1
kernel-rt-debugsource - update to 6.4.0-150700.7.54.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.54.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.54.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.54.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.54.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.54.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.55.1
kernel-azure-devel - update to 6.4.0-150700.53.55.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.55.1
kernel-azure-debugsource - update to 6.4.0-150700.53.55.1
kernel-azure - update to 6.4.0-150700.53.55.1
reiserfs-kmp-default - update to 6.4.0-150700.53.55.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.55.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.55.1
kernel-obs-build - update to 6.4.0-150700.53.55.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.55.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.55.1
kernel-docs - update to 6.4.0-150700.53.55.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.55.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.55.1
kernel-zfcpdump - update to 6.4.0-150700.53.55.1
kernel-64kb-devel - update to 6.4.0-150700.53.55.1
kernel-64kb - update to 6.4.0-150700.53.55.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.55.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.55.1
kernel-default-extra - update to 6.4.0-150700.53.55.1
kernel-default-livepatch - update to 6.4.0-150700.53.55.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.55.1
linux-fips (Ubuntu package) - addressed in versions 6.8.0-136.136+fips2, 6.8.0-136.136.2, 6.8.0-136.136.2~22.04.1, 6.8.0-1058.61
linux-hwe-6.8 (Ubuntu package) - update to 6.8.0-136.136~22.04.1
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1030.31, 6.8.0-1033.34, 6.8.0-1061.62, 6.8.0-1061.62~22.04.1
linux-oracle-6.8 (Ubuntu package) - update to 6.8.0-1058.61~22.04.1
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1059.62, 6.8.0-1059.62.1, 6.8.0-1059.62~22.04.1
linux-aws-6.8 (Ubuntu package) - addressed in versions 6.8.0-1061.64+fips1, 6.8.0-1061.64~22.04.1
linux-azure-fde-6.8 (Ubuntu package) - update to 6.8.0-1062.69~22.04.1
linux-gcp-fips (Ubuntu package) - update to 6.8.0-1064.72+fips1

• https://git.kernel.org/stable/c/20864e3e41c74cda253a9fa6b6fe093c1461a6a9
• https://git.kernel.org/stable/c/575122cd6569c4c4aa13c4c9958fea506724c788
• https://git.kernel.org/stable/c/6e330889e6c8db99f04d4feb861d23de4e8fbb13
• https://git.kernel.org/stable/c/892dbaf46bb738dacf1fa663eadb3712c85868f0
• https://git.kernel.org/stable/c/ac83b0d91a3f4f0c012ba9c85fb99436cddb1208
• https://git.kernel.org/stable/c/ecfa6f34492c493a9a1dc2900f3edeb01c79946b

• NULL Pointer Dereference in Linux kernel hid driver
• SUSE update for the Linux Kernel
• Debian update for linux
• Debian update for linux
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux
• Ubuntu update for linux-gcp-fips
• Ubuntu update for linux-nvidia-tegra-5.15
• Ubuntu update for linux
• Ubuntu update for linux-oracle-6.8
• Ubuntu update for linux-fips
• Ubuntu update for linux-ibm-5.15
• Ubuntu update for linux-nvidia-tegra
• Ubuntu update for linux-aws
• Ubuntu update for linux-nvidia
• Ubuntu update for linux-azure-fde
• Ubuntu update for linux-azure
• Ubuntu update for linux-azure-fde-6.8
• Ubuntu update for linux-azure-fips
• Ubuntu update for linux-azure-fde
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws
• Ubuntu update for linux-azure-5.15
• Ubuntu update for linux-hwe-6.8
• Ubuntu update for linux-aws-6.8
• Ubuntu update for linux-ibm
• Ubuntu update for linux-azure-fips
• Ubuntu update for linux-intel-iot-realtime
• Ubuntu update for linux-intel-iotg
• Ubuntu update for linux-raspi
• Ubuntu update for linux-gcp-5.15
• Ubuntu update for linux-raspi