NULL pointer dereference in Linux kernel - CVE-2026-23084

Vulnerability identifier: #VU122341

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-2026-23084

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 be_cmd_get_perm_mac() function in drivers/net/ethernet/emulex/benet/be_cmds.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Debian Linux
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
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 Real Time Module
Basesystem Module
Development Tools Module
Legacy Module
Public Cloud Module
SUSE Linux Enterprise Live Patching
Ubuntu
openEuler
linux-gcp-5.15 (Ubuntu package)
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource
kernel-livepatch-6_4_0-150700_7_34-rt
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo
kernel-livepatch-6_4_0-150700_53_34-default
kernel-livepatch-SLE15-SP7_Update_10-debugsource
ocfs2-kmp-rt
kernel-rt-devel-debuginfo
kernel-rt-debuginfo
gfs2-kmp-rt
kernel-syms-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
dlm-kmp-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-devel-rt
kernel-source-rt
kernel-azure-devel-debuginfo
kernel-zfcpdump
kernel-macros
kernel-devel
kernel-default-devel
kernel-default-debuginfo
ocfs2-kmp-default
dlm-kmp-default-debuginfo
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
kernel-azure-debuginfo
kernel-default-devel-debuginfo
kernel-default-debugsource
kernel-azure-devel
kernel-default
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb
kernel-zfcpdump-debuginfo
kernel-default-livepatch-devel
kernel-azure-debugsource
kernel-default-livepatch
kernel-default-extra
kernel-default-extra-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
gfs2-kmp-default
gfs2-kmp-default-debuginfo
kernel-azure
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-source
kernel-syms
kernel-obs-build-debugsource
kernel-obs-build
kernel-docs
kernel-zfcpdump-debugsource
kernel-default-base
perf
bpftool-debuginfo
kernel-debuginfo
kernel
bpftool
python3-perf-debuginfo
python3-perf
perf-debuginfo
kernel-debugsource
kernel-tools-debuginfo
kernel-tools
kernel-headers
kernel-tools-devel
kernel-extra-modules
linux (Ubuntu package)
linux-hwe-5.15 (Ubuntu package)
linux-fips (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-xilinx-zynqmp (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-azure (Ubuntu package)
linux-ibm (Ubuntu package)
linux-raspi (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux (Debian package)
linux-nvidia-6.8 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-azure-fde-6.17 (Ubuntu package)
linux-gcp-6.17 (Ubuntu package)
linux-oracle-6.17 (Ubuntu package)
linux-azure-6.17 (Ubuntu package)
linux-oem-6.17 (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)

Install update from vendor's repository.

linux-gcp-5.15 (Ubuntu package) - update to 5.15.0-1106.115~20.04.1
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_34-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_34-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_10-debugsource - update to 1-150700.15.3.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-syms-rt - update to 6.4.0-150700.7.34.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-devel - update to 6.4.0-150700.7.34.1
kernel-rt - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-rt-debugsource - update to 6.4.0-150700.7.34.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
dlm-kmp-rt - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-devel-rt - update to 6.4.0-150700.7.34.1
kernel-source-rt - update to 6.4.0-150700.7.34.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.34.1
kernel-zfcpdump - update to 6.4.0-150700.53.34.1
kernel-macros - update to 6.4.0-150700.53.34.1
kernel-devel - update to 6.4.0-150700.53.34.1
kernel-default-devel - update to 6.4.0-150700.53.34.1
kernel-default-debuginfo - update to 6.4.0-150700.53.34.1
ocfs2-kmp-default - update to 6.4.0-150700.53.34.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.34.1
cluster-md-kmp-default - update to 6.4.0-150700.53.34.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.34.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.34.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.34.1
kernel-default-debugsource - update to 6.4.0-150700.53.34.1
kernel-azure-devel - update to 6.4.0-150700.53.34.1
kernel-default - update to 6.4.0-150700.53.34.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.34.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.34.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.34.1
kernel-64kb-devel - update to 6.4.0-150700.53.34.1
kernel-64kb - update to 6.4.0-150700.53.34.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.34.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.34.1
kernel-azure-debugsource - update to 6.4.0-150700.53.34.1
kernel-default-livepatch - update to 6.4.0-150700.53.34.1
kernel-default-extra - update to 6.4.0-150700.53.34.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.34.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.34.1
dlm-kmp-default - update to 6.4.0-150700.53.34.1
gfs2-kmp-default - update to 6.4.0-150700.53.34.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.34.1
kernel-azure - update to 6.4.0-150700.53.34.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.34.1
reiserfs-kmp-default - update to 6.4.0-150700.53.34.1
kernel-source - update to 6.4.0-150700.53.34.1
kernel-syms - update to 6.4.0-150700.53.34.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.34.1
kernel-obs-build - update to 6.4.0-150700.53.34.1
kernel-docs - update to 6.4.0-150700.53.34.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.34.1
kernel-default-base - update to 6.4.0-150700.53.34.1.150700.17.23.1
perf - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
bpftool-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-devel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
bpftool - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
python3-perf-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
python3-perf - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
perf-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-debugsource - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-source - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-headers - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools-devel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-extra-modules - update to 6.6.0-142.0.0.137
linux (Ubuntu package) - addressed in versions 5.15.0-175.185~20.04.1, 5.15.0-175.185, 5.15.0-176.186, 5.15.0-1088.96, 5.15.0-1100.101, 5.15.0-1101.107~20.04.1, 5.15.0-1102.108, 5.15.0-1105.112~20.04.1, 5.15.0-1105.112, 5.15.0-1105.114, 5.15.0.175.148, 5.15.0.176.161, 5.15.0.1088.87, 5.15.0.1100.100, 5.15.0.1101.100, 5.15.0.1102.98, 5.15.0.1105.101, 5.15.0.1105.108, 6.8.0-117.117, 6.8.0-117.117.1~22.04.1, 6.8.0-117.117.1, 6.8.0-1041.44, 6.8.0-1054.60, 6.8.0-1055.56~22.04.1, 6.8.0-1055.56, 6.8.0-1055.58+fips1, 6.8.0-1056.60, 6.8.0-1058.61, 6.8.0-1058.61+fips1, 6.8.0-2045.46, 6.8.1-1051.52~22.04.1, 6.8.1-1051.52
linux-hwe-5.15 (Ubuntu package) - update to 5.15.0-176.186~20.04.1
linux-fips (Ubuntu package) - addressed in versions 5.15.0-176.186+fips1, 5.15.0-1105.114+fips1, 5.15.0.176.102, 5.15.0.1105.95, 6.8.0-116.116+fips1
linux-nvidia-tegra (Ubuntu package) - addressed in versions 5.15.0-1046.46+1, 5.15.0-1057.57, 5.15.0.1046.48, 6.8.0-1024.24
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1057.57~20.04.1
linux-xilinx-zynqmp (Ubuntu package) - addressed in versions 5.15.0-1070.74, 5.15.0.1070.73
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1097.99, 5.15.0-1104.113, 5.15.0.1097.101, 5.15.0.1104.108
linux-azure (Ubuntu package) - addressed in versions 5.15.0-1097.102, 5.15.0-1100.106~20.04.1, 5.15.0-1100.106, 5.15.0-1102.108~20.04.1, 5.15.0-1110.119, 5.15.0.1097.93, 5.15.0.1100.99, 5.15.0.1110.108, 6.8.0-1056.62
linux-ibm (Ubuntu package) - addressed in versions 5.15.0-1099.102~20.04.1, 5.15.0-1099.102, 5.15.0.1099.95
linux-raspi (Ubuntu package) - addressed in versions 5.15.0-1099.102, 5.15.0.1099.97
linux-azure-5.15 (Ubuntu package) - update to 5.15.0-1110.119~20.04.1
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0-1110.119+fips1, 5.15.0.1110.95
linux (Debian package) - addressed in versions 6.1.162-1, 6.12.69-1
linux-nvidia-6.8 (Ubuntu package) - update to 6.8.0-1054.57~22.04.1
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1054.57, 6.8.0-1054.57.1
linux-azure-fde-6.17 (Ubuntu package) - update to 6.17.0-1018.18~24.04.1
linux-gcp-6.17 (Ubuntu package) - addressed in versions 6.17.0-1018.20~24.04.1, 6.17.0-1021.24~24.04.1
linux-oracle-6.17 (Ubuntu package) - addressed in versions 6.17.0-1019.19~24.04.3, 6.17.0-1019.19~24.04.3+1
linux-azure-6.17 (Ubuntu package) - update to 6.17.0-1021.21~24.04.1
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1030.30
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1031.31

• https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a
• https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698
• https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31
• https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80

• NULL pointer dereference in Linux kernel emulex benet driver
• Debian update for linux
• Debian update for linux
• openEuler 24.03 LTS update for kernel
• openEuler 24.03 LTS SP2 update for kernel
• openEuler 24.03 LTS SP1 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux-nvidia-tegra-5.15
• Ubuntu update for linux
• Ubuntu update for linux-fips
• Ubuntu update for linux-hwe-5.15
• Ubuntu update for linux-nvidia-tegra
• Ubuntu update for linux-intel-iot-realtime
• Ubuntu update for linux-azure-fips
• Ubuntu update for linux-azure
• Ubuntu update for linux-ibm
• Ubuntu update for linux-azure-5.15
• Ubuntu update for linux-raspi
• Ubuntu update for linux-xilinx-zynqmp
• Ubuntu update for linux
• Ubuntu update for linux-nvidia
• Ubuntu update for linux-fips
• Ubuntu update for linux-nvidia-tegra
• Ubuntu update for linux-nvidia-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-gcp-6.17
• Ubuntu update for linux-oem-6.17
• Ubuntu update for linux-azure-fde-6.17
• Ubuntu update for linux-azure-6.17
• Ubuntu update for linux-oracle-6.17
• Ubuntu update for linux-nvidia-6.17
• Ubuntu update for linux-gcp-5.15