NULL pointer dereference in Linux kernel - CVE-2025-40321

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Main Vulnerability Database Vulnerabilities #VU119332

NULL pointer dereference in Linux kernel - CVE-2025-40321

Published: December 8, 2025


Vulnerability identifier: #VU119332
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-2025-40321
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Live Patching
Development Tools Module
Legacy Module
SUSE Real Time Module
Public Cloud Module
Basesystem Module
openSUSE Leap
Ubuntu
openEuler
kgraft-patch-4_12_14-122_290-default
kernel-livepatch-6_4_0-150600_23_84-default
kernel-livepatch-SLE15-SP6_Update_19-debugsource
kernel-livepatch-6_4_0-150600_23_84-default-debuginfo
kernel-livepatch-6_4_0-150700_7_28-rt
kernel-livepatch-SLE15-SP7-RT_Update_8-debugsource
kernel-livepatch-6_4_0-150700_7_28-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_28-default
kernel-livepatch-SLE15-SP7_Update_8-debugsource
kernel-livepatch-6_4_0-150700_53_28-default-debuginfo
kernel-syms
kernel-default-debugsource
gfs2-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-kgraft-devel
cluster-md-kmp-default-debuginfo
kernel-default-devel
kernel-default-kgraft
dlm-kmp-default-debuginfo
kernel-default-devel-debuginfo
kernel-default-man
kernel-devel
kernel-default-base-debuginfo
kernel-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-default-base
dlm-kmp-default
kernel-source
cluster-md-kmp-default
ocfs2-kmp-default
kernel-default
kernel-macros
cluster-md-kmp-64kb
dtb-broadcom
kernel-64kb-debugsource
dtb-lg
reiserfs-kmp-64kb-debuginfo
kselftests-kmp-64kb
kernel-64kb-devel
dtb-mediatek
dtb-arm
ocfs2-kmp-64kb
dtb-socionext
cluster-md-kmp-64kb-debuginfo
dtb-nvidia
dtb-marvell
dtb-amazon
dtb-altera
dtb-exynos
dtb-amlogic
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-kvmsmall
kernel-zfcpdump
dtb-hisilicon
kernel-64kb
dtb-renesas
dtb-qcom
dtb-amd
dlm-kmp-64kb
kernel-64kb-debuginfo
kernel-64kb-extra-debuginfo
dtb-xilinx
kernel-64kb-devel-debuginfo
kernel-64kb-optional
dtb-sprd
gfs2-kmp-64kb
kernel-64kb-extra
dtb-allwinner
dtb-rockchip
dtb-freescale
dtb-cavium
ocfs2-kmp-64kb-debuginfo
kernel-64kb-optional-debuginfo
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
dtb-apple
reiserfs-kmp-64kb
kselftests-kmp-64kb-debuginfo
dtb-apm
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-livepatch-devel
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug
kernel-source-vanilla
kernel-docs-html
kernel-docs
kernel-obs-build-debugsource
reiserfs-kmp-default-debuginfo
kernel-default-livepatch
kernel-obs-qa
kernel-default-optional
kernel-default-optional-debuginfo
reiserfs-kmp-default
kernel-default-extra
kernel-default-extra-debuginfo
kernel-obs-build
kselftests-kmp-default
kselftests-kmp-default-debuginfo
kernel-default-base-rebuild
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debugsource
kernel-rt-devel-debuginfo
dlm-kmp-rt
kernel-devel-rt
kernel-source-rt
kernel-rt
cluster-md-kmp-rt
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt-devel
ocfs2-kmp-rt
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
kernel-devel-azure
kernel-azure
kernel-syms-azure
kernel-azure-devel-debuginfo
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-source-azure
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-headers
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo
linux-aws-5.15 (Ubuntu package)
linux (Ubuntu package)
linux-aws-fips (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-raspi (Ubuntu package)
linux-realtime (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-xilinx (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

How to mitigate CVE-2025-40321

Install update from vendor's repository.

kgraft-patch-4_12_14-122_290-default - update to 1-8.7.1
kernel-livepatch-6_4_0-150600_23_84-default - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP6_Update_19-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_84-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150700_7_28-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_8-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_28-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_28-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_8-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_28-default-debuginfo - update to 1-150700.15.3.1
kernel-syms - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-debugsource - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
gfs2-kmp-default - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-kgraft-devel - update to 4.12.14-122.290.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-devel - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-kgraft - update to 4.12.14-122.290.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-man - update to 4.12.14-122.290.1
kernel-devel - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-base-debuginfo - update to 4.12.14-122.290.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-base - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1.150600.12.38.1, 6.4.0-150700.53.28.1.150700.17.19.1
dlm-kmp-default - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-source - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-macros - addressed in versions 4.12.14-122.290.1, 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.84.1
dtb-broadcom - update to 6.4.0-150600.23.84.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
dtb-lg - update to 6.4.0-150600.23.84.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.84.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
dtb-mediatek - update to 6.4.0-150600.23.84.1
dtb-arm - update to 6.4.0-150600.23.84.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.84.1
dtb-socionext - update to 6.4.0-150600.23.84.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
dtb-nvidia - update to 6.4.0-150600.23.84.1
dtb-marvell - update to 6.4.0-150600.23.84.1
dtb-amazon - update to 6.4.0-150600.23.84.1
dtb-altera - update to 6.4.0-150600.23.84.1
dtb-exynos - update to 6.4.0-150600.23.84.1
dtb-amlogic - update to 6.4.0-150600.23.84.1
dtb-aarch64 - update to 6.4.0-150600.23.84.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-kvmsmall - update to 6.4.0-150600.23.84.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
dtb-hisilicon - update to 6.4.0-150600.23.84.1
kernel-64kb - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
dtb-renesas - update to 6.4.0-150600.23.84.1
dtb-qcom - update to 6.4.0-150600.23.84.1
dtb-amd - update to 6.4.0-150600.23.84.1
dlm-kmp-64kb - update to 6.4.0-150600.23.84.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.84.1
dtb-xilinx - update to 6.4.0-150600.23.84.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-64kb-optional - update to 6.4.0-150600.23.84.1
dtb-sprd - update to 6.4.0-150600.23.84.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.84.1
kernel-64kb-extra - update to 6.4.0-150600.23.84.1
dtb-allwinner - update to 6.4.0-150600.23.84.1
dtb-rockchip - update to 6.4.0-150600.23.84.1
dtb-freescale - update to 6.4.0-150600.23.84.1
dtb-cavium - update to 6.4.0-150600.23.84.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.84.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
dtb-apple - update to 6.4.0-150600.23.84.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.84.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.84.1
dtb-apm - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.84.1
kernel-debug-vdso - update to 6.4.0-150600.23.84.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.84.1
kernel-default-vdso - update to 6.4.0-150600.23.84.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.84.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.84.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.84.1
kernel-debug-debugsource - update to 6.4.0-150600.23.84.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.84.1
kernel-debug-devel - update to 6.4.0-150600.23.84.1
kernel-debug - update to 6.4.0-150600.23.84.1
kernel-source-vanilla - update to 6.4.0-150600.23.84.1
kernel-docs-html - update to 6.4.0-150600.23.84.1
kernel-docs - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-obs-qa - update to 6.4.0-150600.23.84.1
kernel-default-optional - update to 6.4.0-150600.23.84.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.84.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.84.1, 6.4.0-150700.53.28.1
kselftests-kmp-default - update to 6.4.0-150600.23.84.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.84.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.84.1.150600.12.38.1
gfs2-kmp-rt - update to 6.4.0-150700.7.28.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.28.1
kernel-rt-debugsource - update to 6.4.0-150700.7.28.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.28.1
dlm-kmp-rt - update to 6.4.0-150700.7.28.1
kernel-devel-rt - update to 6.4.0-150700.7.28.1
kernel-source-rt - update to 6.4.0-150700.7.28.1
kernel-rt - update to 6.4.0-150700.7.28.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.28.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.28.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.28.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.28.1
kernel-rt-devel - update to 6.4.0-150700.7.28.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.28.1
kernel-syms-rt - update to 6.4.0-150700.7.28.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.28.1
kernel-devel-azure - update to 6.4.0-150700.20.24.1
kernel-azure - update to 6.4.0-150700.20.24.1
kernel-syms-azure - update to 6.4.0-150700.20.24.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.24.1
kernel-azure-devel - update to 6.4.0-150700.20.24.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.24.1
kernel-azure-debugsource - update to 6.4.0-150700.20.24.1
kernel-source-azure - update to 6.4.0-150700.20.24.1
kernel - update to 6.6.0-145.1.28.165
bpftool - update to 6.6.0-145.1.28.165
bpftool-debuginfo - update to 6.6.0-145.1.28.165
kernel-debuginfo - update to 6.6.0-145.1.28.165
kernel-debugsource - update to 6.6.0-145.1.28.165
kernel-devel - update to 6.6.0-145.1.28.165
kernel-headers - update to 6.6.0-145.1.28.165
kernel-source - update to 6.6.0-145.1.28.165
kernel-tools - update to 6.6.0-145.1.28.165
kernel-tools-debuginfo - update to 6.6.0-145.1.28.165
kernel-tools-devel - update to 6.6.0-145.1.28.165
perf - update to 6.6.0-145.1.28.165
perf-debuginfo - update to 6.6.0-145.1.28.165
python3-perf - update to 6.6.0-145.1.28.165
python3-perf-debuginfo - update to 6.6.0-145.1.28.165
linux-aws-5.15 (Ubuntu package) - addressed in versions 5.15.0-173.183~20.04.1, 5.15.0-1098.104~20.04.1, 5.15.0-1099.105, 5.15.0-1100.106~20.04.1, 5.15.0-1103.110~20.04.1, 5.15.0-1103.112~20.04.1, 5.15.0.1099.98
linux (Ubuntu package) - addressed in versions 5.15.0-173.183, 5.15.0-1055.55~20.04.1, 5.15.0-1055.55, 5.15.0-1067.71, 5.15.0-1086.94, 5.15.0-1095.100, 5.15.0-1097.100~20.04.1, 5.15.0-1098.99, 5.15.0-1098.104, 5.15.0-1100.106, 5.15.0-1103.110, 5.15.0-1103.112~20.04.1, 5.15.0.173.146, 5.15.0.173.161, 5.15.0.1067.70, 5.15.0.1086.85, 5.15.0.1095.91, 5.15.0.1097.93, 5.15.0.1097.100, 5.15.0.1098.98, 5.15.0.1100.96, 5.15.0.1103.99, 5.15.0.1103.106, 6.8.0-106.106~22.04.1, 6.8.0-106.106, 6.8.0-106.106.1~22.04.1, 6.8.0-106.106.1, 6.8.0-1035.38, 6.8.0-1047.48~22.04.1, 6.8.0-1047.48, 6.8.0-1048.53, 6.8.0-1049.49~22.04.1, 6.8.0-1049.49, 6.8.0-1050.53, 6.8.0-1052.55~22.04.1, 6.8.0-1052.55, 6.17.0-14.14, 6.17.0-1006.7, 6.17.0-1008.8
linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0-173.183+fips1, 5.15.0-1103.110+fips1, 5.15.0-1103.112+fips1, 5.15.0.173.100, 5.15.0.1103.93, 5.15.0.1103.99, 6.8.0-106.106+fips1, 6.8.0-1050.53+fips1, 6.8.0-1052.55+fips1
linux-nvidia-tegra-igx (Ubuntu package) - addressed in versions 5.15.0-1044.44, 5.15.0.1044.46
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1094.96, 5.15.0.1094.98
linux-raspi (Ubuntu package) - addressed in versions 5.15.0-1097.100, 5.15.0.1097.95, 6.8.0-1050.54, 6.8.0-2040.41
linux-realtime (Ubuntu package) - addressed in versions 5.15.0-1102.111, 5.15.0.1102.106, 6.8.1-1045.46~22.04.1, 6.8.1-1045.46
linux-azure (Ubuntu package) - addressed in versions 5.15.0-1109.118, 5.15.0.1109.107, 6.8.0-1051.57, 6.17.0-1008.8
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0-1109.118+fips1, 5.15.0.1109.94, 6.8.0-1052.58+fips1
linux-azure-5.15 (Ubuntu package) - update to 5.15.0-1110.119~20.04.1
linux-xilinx (Ubuntu package) - update to 6.8.0-1029.30
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1049.52~22.04.1, 6.8.0-1049.52, 6.8.0-1049.52.1
linux-aws-6.8 (Ubuntu package) - update to 6.8.0-1050.53~22.04.1
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1051.57~22.04.1
linux-aws (Ubuntu package) - update to 6.17.0-1007.7
linux-gcp (Ubuntu package) - update to 6.17.0-1007.7
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1011.11

External References

Related Security Bulletins