NULL pointer dereference in Linux kernel - CVE-2022-48811

Vulnerability identifier: #VU94444

CSH Severity: Low

CVSS v4.0: 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-2022-48811

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Real Time 12
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 Enterprise Storage
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Server 15 SP3 LTSS
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP4 LTSS
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Real Time Module
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
openSUSE Leap
openEuler
RecoverPoint for Virtual Machines
kgraft-patch-4_12_14-122_225-default
kernel-livepatch-5_3_18-150300_59_174-default
kernel-livepatch-5_3_18-150300_59_174-default-debuginfo
kernel-livepatch-SLE15-SP3_Update_48-debugsource
kernel-livepatch-5_3_18-150300_59_174-preempt
kernel-livepatch-5_3_18-150300_59_174-preempt-debuginfo
kernel-livepatch-5_14_21-150400_24_128-default-debuginfo
kernel-livepatch-5_14_21-150400_24_128-default
kernel-livepatch-SLE15-SP4_Update_29-debugsource
kernel-livepatch-5_14_21-150500_13_64-rt
kernel-livepatch-5_14_21-150500_55_73-default-debuginfo
kernel-livepatch-5_14_21-150500_13_64-rt-debuginfo
kernel-livepatch-SLE15-SP5-RT_Update_18-debugsource
kernel-livepatch-5_14_21-150500_55_73-default
kernel-livepatch-SLE15-SP5_Update_17-debugsource
kernel-rt_debug-devel
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt_debug-devel-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
kernel-rt_debug-debugsource
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-base
kernel-rt-base-debuginfo
dlm-kmp-rt
kernel-rt-debuginfo
kernel-rt_debug-debuginfo
gfs2-kmp-rt
kernel-syms-rt
ocfs2-kmp-rt
kernel-source-rt
kernel-devel-rt
kernel-rt
kernel-rt_debug
kernel-source-azure
kernel-devel-azure
kernel-azure-debuginfo
kernel-syms-azure
kernel-azure-base-debuginfo
kernel-azure-base
kernel-azure-devel
kernel-azure
kernel-azure-debugsource
kernel-default-extra-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-debuginfo
kernel-default-devel
gfs2-kmp-default
kernel-default-base-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
kernel-default-debugsource
dlm-kmp-default-debuginfo
ocfs2-kmp-default
cluster-md-kmp-default
kernel-default-base
kernel-syms
gfs2-kmp-default-debuginfo
kernel-default
kernel-default-extra
kernel-default-man
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-kgraft
kernel-source
kernel-devel
kernel-macros
kernel-default-devel-debuginfo
kernel-default-kgraft-devel
kernel-docs
kernel-64kb-extra-debuginfo
dtb-aarch64
dtb-amd
dtb-mediatek
dtb-xilinx
dlm-kmp-preempt-debuginfo
kernel-preempt
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-allwinner
ocfs2-kmp-64kb
gfs2-kmp-64kb-debuginfo
ocfs2-kmp-preempt
dtb-exynos
kernel-preempt-optional-debuginfo
cluster-md-kmp-preempt
kernel-64kb-devel
cluster-md-kmp-preempt-debuginfo
reiserfs-kmp-preempt
kernel-preempt-extra-debuginfo
kselftests-kmp-preempt-debuginfo
dtb-altera
dtb-broadcom
dtb-renesas
kselftests-kmp-64kb
dtb-sprd
kselftests-kmp-64kb-debuginfo
dtb-nvidia
dtb-marvell
dtb-cavium
ocfs2-kmp-64kb-debuginfo
dtb-rockchip
dtb-arm
gfs2-kmp-64kb
dlm-kmp-64kb
kernel-64kb-optional-debuginfo
dtb-socionext
kernel-64kb-devel-debuginfo
reiserfs-kmp-64kb
cluster-md-kmp-64kb
dtb-al
dtb-apm
cluster-md-kmp-64kb-debuginfo
dtb-zte
kernel-64kb-optional
dtb-lg
dtb-freescale
reiserfs-kmp-64kb-debuginfo
kernel-64kb-extra
kernel-debug-devel-debuginfo
kernel-obs-qa
kernel-default-livepatch-devel
kernel-source-vanilla
kernel-docs-html
kernel-debug
kernel-kvmsmall
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-debugsource
kernel-debug-livepatch-devel
kernel-debug-devel
reiserfs-kmp-default
kernel-default-livepatch
kernel-default-optional
kselftests-kmp-default
reiserfs-kmp-preempt-debuginfo
kselftests-kmp-preempt
gfs2-kmp-preempt
kernel-preempt-devel
kernel-preempt-debugsource
ocfs2-kmp-preempt-debuginfo
kernel-preempt-optional
kernel-preempt-livepatch-devel
kernel-preempt-extra
gfs2-kmp-preempt-debuginfo
kernel-preempt-devel-debuginfo
kernel-preempt-debuginfo
dlm-kmp-preempt
kernel-default-optional-debuginfo
reiserfs-kmp-default-debuginfo
kselftests-kmp-default-debuginfo
kernel-64kb-livepatch-devel
dtb-hisilicon
kernel-64kb-debugsource
dtb-qcom
kernel-64kb-debuginfo
dtb-amlogic
kernel-64kb
dlm-kmp-64kb-debuginfo
kernel-default-base-rebuild
kernel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-headers
kernel-debugsource
kernel-debuginfo
bpftool
bpftool-debuginfo
dtb-amazon
dtb-apple
kernel-rt-optional-debuginfo
reiserfs-kmp-rt
kselftests-kmp-rt-debuginfo
kernel-rt_debug-livepatch-devel
kernel-rt_debug-vdso
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-optional
kernel-rt-livepatch-devel
kernel-rt-vdso-debuginfo
kernel-rt-extra
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt-vdso
kernel-rt-livepatch
kselftests-kmp-azure
dlm-kmp-azure
reiserfs-kmp-azure
gfs2-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-azure-optional-debuginfo
ocfs2-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-azure-livepatch-devel
kernel-azure-extra-debuginfo
kernel-azure-extra
kernel-azure-optional
gfs2-kmp-azure
kernel-azure-devel-debuginfo
dlm-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-debug-vdso
kernel-debug-vdso-debuginfo
Storage Resource Manager
Dell EMC Storage Monitoring and Reporting (SMR)
Dell Secure Connect Gateway

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

The vulnerability exists due to NULL pointer dereference within the init_crq_queue(), __ibmvnic_open() and ibmvnic_open() functions in drivers/net/ethernet/ibm/ibmvnic.c. A local user can perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827
• https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81
• https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17