NULL pointer dereference in Linux kernel - CVE-2022-48879

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Main Vulnerability Database Vulnerabilities #VU96355

NULL pointer dereference in Linux kernel - CVE-2022-48879

Published: August 21, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU96355
CSH Severity: Low
CVSS v4 BT: 4.3 [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/E:U/U:Clear]
CVE-ID: CVE-2022-48879
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 efisubsys_init() and generic_ops_unregister() functions in drivers/firmware/efi/efi.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Desktop 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 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 Desktop 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Linux Enterprise Live Patching
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
Public Cloud Module
openSUSE Leap
openEuler
Dell EMC VxRail Appliance
kernel-livepatch-5_14_21-150400_24_141-default-debuginfo
kernel-livepatch-5_14_21-150400_24_141-default
kernel-livepatch-SLE15-SP4_Update_33-debugsource
kernel-livepatch-SLE15-SP5-RT_Update_22-debugsource
kernel-livepatch-5_14_21-150500_13_76-rt
kernel-livepatch-5_14_21-150500_13_76-rt-debuginfo
kernel-livepatch-5_14_21-150500_55_88-default
kernel-livepatch-SLE15-SP5_Update_21-debugsource
kernel-livepatch-5_14_21-150500_55_88-default-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-headers
kernel-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-source-rt
dtb-cavium
dtb-broadcom
dtb-rockchip
kernel-64kb-extra-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-optional
dtb-freescale
dtb-nvidia
dtb-exynos
reiserfs-kmp-64kb
kernel-default-optional-debuginfo
kernel-kvmsmall
dtb-amlogic
kernel-default-extra-debuginfo
cluster-md-kmp-default
reiserfs-kmp-default-debuginfo
kselftests-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-devel
kernel-default
kselftests-kmp-64kb-debuginfo
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-aarch64
dtb-mediatek
kernel-64kb-debuginfo
dtb-arm
dtb-allwinner
kernel-64kb-devel
kernel-64kb
dtb-apple
dtb-lg
gfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb
dtb-renesas
kernel-64kb-optional-debuginfo
cluster-md-kmp-64kb
dtb-amazon
dlm-kmp-64kb-debuginfo
dtb-xilinx
dtb-socionext
dtb-marvell
dtb-amd
reiserfs-kmp-64kb-debuginfo
dtb-qcom
kernel-64kb-extra
dlm-kmp-64kb
ocfs2-kmp-64kb-debuginfo
dtb-sprd
dtb-altera
ocfs2-kmp-64kb
kernel-64kb-debugsource
dtb-apm
cluster-md-kmp-64kb-debuginfo
dtb-hisilicon
kselftests-kmp-64kb
kernel-64kb-devel-debuginfo
kernel-debug-devel-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug-livepatch-devel
kernel-default-devel-debuginfo
kernel-debug
kernel-macros
kernel-source-vanilla
kernel-docs-html
kernel-docs
kernel-default-optional
kernel-default-debugsource
kernel-obs-build
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default-extra
kernel-obs-qa
dlm-kmp-default
reiserfs-kmp-default
kselftests-kmp-default
kernel-syms
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-debuginfo
kernel-obs-build-debugsource
dlm-kmp-default-debuginfo
kernel-default-base-rebuild
kernel-default-base
gfs2-kmp-rt
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-devel
kernel-rt-vdso-debuginfo
kernel-syms-rt
cluster-md-kmp-rt
kernel-rt_debug-debuginfo
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-vdso
kernel-devel-rt
kernel-rt_debug
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt_debug-livepatch-devel
kernel-rt-optional
kernel-rt-livepatch-devel
kernel-rt-extra
kernel-rt-optional-debuginfo
kernel-rt-extra-debuginfo
kselftests-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-livepatch
ocfs2-kmp-rt
dlm-kmp-rt
kernel-rt_debug-vdso
kernel-rt_debug-devel
gfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt_debug-debugsource
kernel-rt_debug-devel-debuginfo
kernel-azure-devel
gfs2-kmp-azure
kernel-azure-debugsource
kernel-azure-optional-debuginfo
kernel-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-devel-azure
ocfs2-kmp-azure-debuginfo
kernel-source-azure
cluster-md-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-azure-extra
kselftests-kmp-azure
kernel-azure-livepatch-devel
kernel-syms-azure
reiserfs-kmp-azure
ocfs2-kmp-azure
dlm-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
gfs2-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
kernel-azure-debuginfo
kernel-azure-optional
reiserfs-kmp-azure-debuginfo
dlm-kmp-azure

How to mitigate CVE-2022-48879

Install update from vendor's website.

Linux kernel - addressed in versions 4.19.270, 5.4.229, 5.10.164, 5.15.89, 6.1.7, 6.2
Dell EMC VxRail Appliance - addressed in versions 7.0.533, 8.320
kernel-livepatch-5_14_21-150400_24_141-default-debuginfo - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150400_24_141-default - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP4_Update_33-debugsource - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP5-RT_Update_22-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_76-rt - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_76-rt-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_88-default - update to 1-150500.11.5.1
kernel-livepatch-SLE15-SP5_Update_21-debugsource - update to 1-150500.11.5.1
kernel-livepatch-5_14_21-150500_55_88-default-debuginfo - update to 1-150500.11.5.1
python2-perf - update to 4.19.90-2410.2.0.0299
perf-debuginfo - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
perf - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-tools-devel - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-tools-debuginfo - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-tools - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-source - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-devel - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-debugsource - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-debuginfo - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
bpftool-debuginfo - update to 4.19.90-2410.2.0.0299
bpftool - update to 4.19.90-2410.2.0.0299
kernel - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
python2-perf-debuginfo - update to 4.19.90-2410.2.0.0299
python3-perf - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
python3-perf-debuginfo - addressed in versions 4.19.90-2410.2.0.0299, 5.10.0-136.97.0.178
kernel-headers - update to 5.10.0-136.97.0.178
kernel-rt - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
dtb-cavium - update to 5.14.21-150400.24.141.1
dtb-broadcom - update to 5.14.21-150400.24.141.1
dtb-rockchip - update to 5.14.21-150400.24.141.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.141.1
kernel-64kb-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-64kb-optional - update to 5.14.21-150400.24.141.1
dtb-freescale - update to 5.14.21-150400.24.141.1
dtb-nvidia - update to 5.14.21-150400.24.141.1
dtb-exynos - update to 5.14.21-150400.24.141.1
reiserfs-kmp-64kb - update to 5.14.21-150400.24.141.1
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.141.1
kernel-kvmsmall - update to 5.14.21-150400.24.141.1
dtb-amlogic - update to 5.14.21-150400.24.141.1
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.141.1
cluster-md-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.141.1
gfs2-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-aarch64 - update to 5.14.21-150400.24.141.1
dtb-mediatek - update to 5.14.21-150400.24.141.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-arm - update to 5.14.21-150400.24.141.1
dtb-allwinner - update to 5.14.21-150400.24.141.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-64kb - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-apple - update to 5.14.21-150400.24.141.1
dtb-lg - update to 5.14.21-150400.24.141.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
gfs2-kmp-64kb - update to 5.14.21-150400.24.141.1
dtb-renesas - update to 5.14.21-150400.24.141.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.141.1
cluster-md-kmp-64kb - update to 5.14.21-150400.24.141.1
dtb-amazon - update to 5.14.21-150400.24.141.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-xilinx - update to 5.14.21-150400.24.141.1
dtb-socionext - update to 5.14.21-150400.24.141.1
dtb-marvell - update to 5.14.21-150400.24.141.1
dtb-amd - update to 5.14.21-150400.24.141.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-qcom - update to 5.14.21-150400.24.141.1
kernel-64kb-extra - update to 5.14.21-150400.24.141.1
dlm-kmp-64kb - update to 5.14.21-150400.24.141.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-sprd - update to 5.14.21-150400.24.141.1
dtb-altera - update to 5.14.21-150400.24.141.1
ocfs2-kmp-64kb - update to 5.14.21-150400.24.141.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-apm - update to 5.14.21-150400.24.141.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-hisilicon - update to 5.14.21-150400.24.141.1
kselftests-kmp-64kb - update to 5.14.21-150400.24.141.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-debug-devel-debuginfo - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-devel - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.141.1
kernel-debug-debugsource - update to 5.14.21-150400.24.141.1
kernel-debug-debuginfo - update to 5.14.21-150400.24.141.1
kernel-debug-devel - update to 5.14.21-150400.24.141.1
kernel-debug-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-default-devel-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-debug - update to 5.14.21-150400.24.141.1
kernel-source - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-macros - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-source-vanilla - update to 5.14.21-150400.24.141.1
kernel-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-docs-html - update to 5.14.21-150400.24.141.1
kernel-docs - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-optional - update to 5.14.21-150400.24.141.1
kernel-default-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
cluster-md-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-extra - update to 5.14.21-150400.24.141.1
kernel-obs-qa - update to 5.14.21-150400.24.141.1
dlm-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kselftests-kmp-default - update to 5.14.21-150400.24.141.1
kernel-syms - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
gfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dlm-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-base-rebuild - update to 5.14.21-150400.24.141.1.150400.24.68.2
kernel-default-base - addressed in versions 5.14.21-150400.24.141.1.150400.24.68.2, 5.14.21-150500.55.88.1.150500.6.39.4
gfs2-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-devel - update to 5.14.21-150500.13.76.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.76.1
kernel-syms-rt - update to 5.14.21-150500.13.76.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.76.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-vdso - update to 5.14.21-150500.13.76.1
kernel-devel-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug - update to 5.14.21-150500.13.76.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.76.1
kselftests-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug-livepatch-devel - update to 5.14.21-150500.13.76.1
kernel-rt-optional - update to 5.14.21-150500.13.76.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.76.1
kernel-rt-extra - update to 5.14.21-150500.13.76.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.76.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-livepatch - update to 5.14.21-150500.13.76.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.76.1
dlm-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.76.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.76.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.76.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.76.1
kernel-azure-devel - update to 5.14.21-150500.33.72.1
gfs2-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-azure-debugsource - update to 5.14.21-150500.33.72.1
kernel-azure-optional-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure - update to 5.14.21-150500.33.72.1
kernel-azure-vdso-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-vdso - update to 5.14.21-150500.33.72.1
kernel-devel-azure - update to 5.14.21-150500.33.72.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-source-azure - update to 5.14.21-150500.33.72.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
cluster-md-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-azure-extra - update to 5.14.21-150500.33.72.1
kselftests-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-azure-livepatch-devel - update to 5.14.21-150500.33.72.1
kernel-syms-azure - update to 5.14.21-150500.33.72.1
reiserfs-kmp-azure - update to 5.14.21-150500.33.72.1
ocfs2-kmp-azure - update to 5.14.21-150500.33.72.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-devel-debuginfo - update to 5.14.21-150500.33.72.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kselftests-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-extra-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-optional - update to 5.14.21-150500.33.72.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
dlm-kmp-azure - update to 5.14.21-150500.33.72.1

External References

Related Security Bulletins