NULL pointer dereference in Linux kernel - CVE-2022-1263

Vulnerability identifier: #VU64074

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-2022-1263

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 kvm implementation in the Linux kernel does not handle releasing a virtual cpu properly. A local user can pass specially crafted data and perform a denial of service (DoS) attack.

Linux kernel
Amazon Linux AMI
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
openSUSE Leap Micro
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Server for SAP Applications
Slackware Linux
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Real Time
SUSE Linux Enterprise Module for Realtime
SUSE Linux Enterprise Module for Live Patching
SUSE Linux Enterprise Module for Public Cloud
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Module for Legacy Software
SUSE Linux Enterprise Module for Development Tools
SUSE Linux Enterprise Module for Basesystem
openSUSE Leap
Ubuntu
kernel-livepatch-SLE15-SP4-RT_Update_1-debugsource
kernel-livepatch-5_14_21-150400_15_5-rt-debuginfo
kernel-livepatch-5_14_21-150400_15_5-rt
kernel-livepatch-5_14_21-150400_24_28-default
kernel-livepatch-5_14_21-150400_24_28-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_4-debugsource
kselftests-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
kselftests-kmp-azure
kernel-syms-azure
kernel-azure-optional-debuginfo
kernel-azure-optional
kernel-azure-livepatch-devel
kernel-azure-extra-debuginfo
kernel-azure-extra
kernel-azure-devel-debuginfo
kernel-azure-devel
kernel-azure-debugsource
kernel-azure-debuginfo
kernel-azure
gfs2-kmp-azure-debuginfo
gfs2-kmp-azure
dlm-kmp-azure-debuginfo
dlm-kmp-azure
cluster-md-kmp-azure
ocfs2-kmp-azure-debuginfo
reiserfs-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-devel-azure
kernel-source-azure
ocfs2-kmp-azure
kernel-rt-devel-debuginfo
kernel-rt-devel
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-source-rt
kernel-devel-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
kernel-rt_debug
ocfs2-kmp-rt
kernel-rt_debug-devel
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
ocfs2-kmp-rt-debuginfo
dtb-socionext
dtb-rockchip
dtb-renesas
dtb-sprd
kernel-debug-livepatch-devel
dtb-qcom
dtb-nvidia
dtb-mediatek
dtb-marvell
dtb-lg
dtb-hisilicon
dtb-freescale
dtb-exynos
dtb-cavium
dtb-broadcom
dtb-arm
dtb-apple
dtb-apm
dtb-amlogic
dtb-amd
dtb-amazon
dtb-altera
dtb-allwinner
dlm-kmp-64kb
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
dlm-kmp-64kb-debuginfo
kselftests-kmp-64kb-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-source-vanilla
kernel-source
kernel-macros
kernel-docs-html
kernel-docs
kernel-devel
reiserfs-kmp-64kb-debuginfo
reiserfs-kmp-64kb
ocfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb
dtb-xilinx
kselftests-kmp-64kb
kernel-64kb-optional-debuginfo
kernel-64kb-optional
kernel-64kb-livepatch-devel
kernel-64kb-extra-debuginfo
kernel-64kb-extra
kernel-64kb-devel-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-64kb
gfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb
kernel-default-debugsource
kernel-obs-build
kernel-default-optional-debuginfo
kernel-default-optional
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-default-extra-debuginfo
kernel-default-extra
kernel-default-devel-debuginfo
kernel-default-devel
kernel-debug-devel
kernel-default-debuginfo
kernel-default
gfs2-kmp-default-debuginfo
gfs2-kmp-default
dlm-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
kernel-obs-qa
kernel-obs-build-debugsource
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall
kernel-kvmsmall-debuginfo
kernel-syms
kselftests-kmp-default
kselftests-kmp-default-debuginfo
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-base
kernel-default-base-rebuild
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-5.15.38/kernel-modules
linux-5.15.38/kernel-huge
linux-5.15.38/kernel-headers
linux-5.15.38/kernel-generic
kernel
linux-image-5.15.0-37-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-37-generic (Ubuntu package)
linux-image-5.15.0-37-generic-64k (Ubuntu package)
linux-image-5.15.0-37-generic-lpae (Ubuntu package)
linux-image-5.15.0-37-lowlatency (Ubuntu package)
linux-image-5.15.0-1007-ibm (Ubuntu package)
linux-image-intel-iotg (Ubuntu package)
linux-image-5.15.0-1008-gke (Ubuntu package)
linux-image-5.15.0-1008-intel-iotg (Ubuntu package)
linux-image-5.15.0-1008-gcp (Ubuntu package)
linux-image-5.15.0-1009-oracle (Ubuntu package)
linux-image-5.15.0-1010-kvm (Ubuntu package)
linux-image-5.15.0-1010-azure (Ubuntu package)
linux-image-5.15.0-1011-raspi (Ubuntu package)
linux-image-5.15.0-1011-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1011-aws (Ubuntu package)

Install updates from vendor's website.

Linux kernel - update to 5.18 rc3
kernel-livepatch-SLE15-SP4-RT_Update_1-debugsource - update to 1-150400.1.3.1
kernel-livepatch-5_14_21-150400_15_5-rt-debuginfo - update to 1-150400.1.3.1
kernel-livepatch-5_14_21-150400_15_5-rt - update to 1-150400.1.3.1
kernel-livepatch-5_14_21-150400_24_28-default - update to 1-150400.9.3.5
kernel-livepatch-5_14_21-150400_24_28-default-debuginfo - update to 1-150400.9.3.5
kernel-livepatch-SLE15-SP4_Update_4-debugsource - update to 1-150400.9.3.5
kselftests-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
kselftests-kmp-azure - update to 5.14.21-150400.14.16.1
kernel-syms-azure - update to 5.14.21-150400.14.16.1
kernel-azure-optional-debuginfo - update to 5.14.21-150400.14.16.1
kernel-azure-optional - update to 5.14.21-150400.14.16.1
kernel-azure-livepatch-devel - update to 5.14.21-150400.14.16.1
kernel-azure-extra-debuginfo - update to 5.14.21-150400.14.16.1
kernel-azure-extra - update to 5.14.21-150400.14.16.1
kernel-azure-devel-debuginfo - update to 5.14.21-150400.14.16.1
kernel-azure-devel - update to 5.14.21-150400.14.16.1
kernel-azure-debugsource - update to 5.14.21-150400.14.16.1
kernel-azure-debuginfo - update to 5.14.21-150400.14.16.1
kernel-azure - update to 5.14.21-150400.14.16.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
gfs2-kmp-azure - update to 5.14.21-150400.14.16.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
dlm-kmp-azure - update to 5.14.21-150400.14.16.1
cluster-md-kmp-azure - update to 5.14.21-150400.14.16.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
reiserfs-kmp-azure - update to 5.14.21-150400.14.16.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150400.14.16.1
kernel-devel-azure - update to 5.14.21-150400.14.16.1
kernel-source-azure - update to 5.14.21-150400.14.16.1
ocfs2-kmp-azure - update to 5.14.21-150400.14.16.1
kernel-rt-devel-debuginfo - update to 5.14.21-150400.15.5.1
kernel-rt-devel - update to 5.14.21-150400.15.5.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150400.15.5.1
gfs2-kmp-rt - update to 5.14.21-150400.15.5.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150400.15.5.1
dlm-kmp-rt - update to 5.14.21-150400.15.5.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150400.15.5.1
cluster-md-kmp-rt - update to 5.14.21-150400.15.5.1
kernel-source-rt - update to 5.14.21-150400.15.5.1
kernel-devel-rt - update to 5.14.21-150400.15.5.1
kernel-rt-debugsource - update to 5.14.21-150400.15.5.1
kernel-rt-debuginfo - update to 5.14.21-150400.15.5.1
kernel-rt - update to 5.14.21-150400.15.5.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150400.15.5.1
kernel-syms-rt - update to 5.14.21-150400.15.5.1
kernel-rt_debug - update to 5.14.21-150400.15.5.1
ocfs2-kmp-rt - update to 5.14.21-150400.15.5.1
kernel-rt_debug-devel - update to 5.14.21-150400.15.5.1
kernel-rt_debug-debuginfo - update to 5.14.21-150400.15.5.1
kernel-rt_debug-debugsource - update to 5.14.21-150400.15.5.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150400.15.5.1
dtb-socionext - update to 5.14.21-150400.24.28.1
dtb-rockchip - update to 5.14.21-150400.24.28.1
dtb-renesas - update to 5.14.21-150400.24.28.1
dtb-sprd - update to 5.14.21-150400.24.28.1
kernel-debug-livepatch-devel - update to 5.14.21-150400.24.28.1
dtb-qcom - update to 5.14.21-150400.24.28.1
dtb-nvidia - update to 5.14.21-150400.24.28.1
dtb-mediatek - update to 5.14.21-150400.24.28.1
dtb-marvell - update to 5.14.21-150400.24.28.1
dtb-lg - update to 5.14.21-150400.24.28.1
dtb-hisilicon - update to 5.14.21-150400.24.28.1
dtb-freescale - update to 5.14.21-150400.24.28.1
dtb-exynos - update to 5.14.21-150400.24.28.1
dtb-cavium - update to 5.14.21-150400.24.28.1
dtb-broadcom - update to 5.14.21-150400.24.28.1
dtb-arm - update to 5.14.21-150400.24.28.1
dtb-apple - update to 5.14.21-150400.24.28.1
dtb-apm - update to 5.14.21-150400.24.28.1
dtb-amlogic - update to 5.14.21-150400.24.28.1
dtb-amd - update to 5.14.21-150400.24.28.1
dtb-amazon - update to 5.14.21-150400.24.28.1
dtb-altera - update to 5.14.21-150400.24.28.1
dtb-allwinner - update to 5.14.21-150400.24.28.1
dlm-kmp-64kb - update to 5.14.21-150400.24.28.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
cluster-md-kmp-64kb - update to 5.14.21-150400.24.28.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
kernel-zfcpdump-debugsource - update to 5.14.21-150400.24.28.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150400.24.28.1
kernel-zfcpdump - update to 5.14.21-150400.24.28.1
kernel-source-vanilla - update to 5.14.21-150400.24.28.1
kernel-source - update to 5.14.21-150400.24.28.1
kernel-macros - update to 5.14.21-150400.24.28.1
kernel-docs-html - update to 5.14.21-150400.24.28.1
kernel-docs - update to 5.14.21-150400.24.28.1
kernel-devel - update to 5.14.21-150400.24.28.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
reiserfs-kmp-64kb - update to 5.14.21-150400.24.28.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
ocfs2-kmp-64kb - update to 5.14.21-150400.24.28.1
dtb-xilinx - update to 5.14.21-150400.24.28.1
kselftests-kmp-64kb - update to 5.14.21-150400.24.28.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.28.1
kernel-64kb-optional - update to 5.14.21-150400.24.28.1
kernel-64kb-livepatch-devel - update to 5.14.21-150400.24.28.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.28.1
kernel-64kb-extra - update to 5.14.21-150400.24.28.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150400.24.28.1
kernel-64kb-devel - update to 5.14.21-150400.24.28.1
kernel-64kb-debugsource - update to 5.14.21-150400.24.28.1
kernel-64kb-debuginfo - update to 5.14.21-150400.24.28.1
kernel-64kb - update to 5.14.21-150400.24.28.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.28.1
gfs2-kmp-64kb - update to 5.14.21-150400.24.28.1
kernel-default-debugsource - update to 5.14.21-150400.24.28.1
kernel-obs-build - update to 5.14.21-150400.24.28.1
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.28.1
kernel-default-optional - update to 5.14.21-150400.24.28.1
kernel-default-livepatch-devel - update to 5.14.21-150400.24.28.1
kernel-default-livepatch - update to 5.14.21-150400.24.28.1
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.28.1
kernel-default-extra - update to 5.14.21-150400.24.28.1
kernel-default-devel-debuginfo - update to 5.14.21-150400.24.28.1
kernel-default-devel - update to 5.14.21-150400.24.28.1
kernel-debug-devel - update to 5.14.21-150400.24.28.1
kernel-default-debuginfo - update to 5.14.21-150400.24.28.1
kernel-default - update to 5.14.21-150400.24.28.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
gfs2-kmp-default - update to 5.14.21-150400.24.28.1
dlm-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
dlm-kmp-default - update to 5.14.21-150400.24.28.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
cluster-md-kmp-default - update to 5.14.21-150400.24.28.1
kernel-obs-qa - update to 5.14.21-150400.24.28.1
kernel-obs-build-debugsource - update to 5.14.21-150400.24.28.1
kernel-debug-devel-debuginfo - update to 5.14.21-150400.24.28.1
kernel-debug-debugsource - update to 5.14.21-150400.24.28.1
kernel-debug-debuginfo - update to 5.14.21-150400.24.28.1
kernel-debug - update to 5.14.21-150400.24.28.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150400.24.28.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.28.1
kernel-kvmsmall-devel - update to 5.14.21-150400.24.28.1
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.28.1
kernel-kvmsmall - update to 5.14.21-150400.24.28.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.28.1
kernel-syms - update to 5.14.21-150400.24.28.1
kselftests-kmp-default - update to 5.14.21-150400.24.28.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
ocfs2-kmp-default - update to 5.14.21-150400.24.28.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
reiserfs-kmp-default - update to 5.14.21-150400.24.28.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150400.24.28.1
kernel-default-base - update to 5.14.21-150400.24.28.1.150400.24.9.5
kernel-default-base-rebuild - update to 5.14.21-150400.24.28.1.150400.24.9.5
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package) - update to 5.15.0.37.37
linux-image-lowlatency-hwe-22.04 (Ubuntu package) - update to 5.15.0.37.37
linux-image-lowlatency-64k (Ubuntu package) - update to 5.15.0.37.37
linux-image-lowlatency (Ubuntu package) - update to 5.15.0.37.37
linux-image-generic-lpae (Ubuntu package) - update to 5.15.0.37.39
linux-image-5.15.0-37-lowlatency-64k (Ubuntu package) - update to 5.15.0-37.39
linux-image-5.15.0-37-generic (Ubuntu package) - update to 5.15.0-37.39
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 5.15.0.37.39
linux-image-virtual-hwe-22.04 (Ubuntu package) - update to 5.15.0.37.39
linux-image-generic (Ubuntu package) - update to 5.15.0.37.39
linux-image-generic-64k (Ubuntu package) - update to 5.15.0.37.39
linux-image-virtual (Ubuntu package) - update to 5.15.0.37.39
linux-image-generic-lpae-hwe-22.04 (Ubuntu package) - update to 5.15.0.37.39
linux-image-5.15.0-37-generic-64k (Ubuntu package) - update to 5.15.0-37.39
linux-image-5.15.0-37-generic-lpae (Ubuntu package) - update to 5.15.0-37.39
linux-image-5.15.0-37-lowlatency (Ubuntu package) - update to 5.15.0-37.39
linux-image-oem-20.04 (Ubuntu package) - update to 5.15.0.37.39
linux-image-ibm (Ubuntu package) - update to 5.15.0.1007.7
linux-image-5.15.0-1007-ibm (Ubuntu package) - update to 5.15.0-1007.8
linux-image-gcp (Ubuntu package) - update to 5.15.0.1008.8
linux-image-intel-iotg (Ubuntu package) - update to 5.15.0.1008.9
linux-image-5.15.0-1008-gke (Ubuntu package) - update to 5.15.0-1008.10
linux-image-5.15.0-1008-intel-iotg (Ubuntu package) - update to 5.15.0-1008.11
linux-image-gke-5.15 (Ubuntu package) - update to 5.15.0.1008.12
linux-image-5.15.0-1008-gcp (Ubuntu package) - update to 5.15.0-1008.12
linux-image-gke (Ubuntu package) - update to 5.15.0.1008.12
linux-image-oracle (Ubuntu package) - update to 5.15.0.1009.8
linux-image-5.15.0-1009-oracle (Ubuntu package) - update to 5.15.0-1009.12
linux-image-kvm (Ubuntu package) - update to 5.15.0.1010.9
linux-image-azure (Ubuntu package) - update to 5.15.0.1010.10
linux-image-5.15.0-1010-kvm (Ubuntu package) - update to 5.15.0-1010.11
linux-image-5.15.0-1010-azure (Ubuntu package) - update to 5.15.0-1010.12
linux-image-raspi (Ubuntu package) - update to 5.15.0.1011.10
linux-image-raspi-nolpae (Ubuntu package) - update to 5.15.0.1011.10
linux-image-aws (Ubuntu package) - update to 5.15.0.1011.12
linux-image-5.15.0-1011-raspi (Ubuntu package) - update to 5.15.0-1011.13
linux-image-5.15.0-1011-raspi-nolpae (Ubuntu package) - update to 5.15.0-1011.13
linux-image-5.15.0-1011-aws (Ubuntu package) - update to 5.15.0-1011.14
linux-5.15.38/kernel-modules - update to 5.15.38
linux-5.15.38/kernel-huge - update to 5.15.38
linux-5.15.38/kernel-headers - update to 5.15.38
linux-5.15.38/kernel-generic - update to 5.15.38
kernel - update to 6.1.10-15.42

• https://ubuntu.com/security/notices/USN-5469-1
• https://bugzilla.redhat.com/show_bug.cgi?id=2072698

• Ubuntu update for linux
• Slackware Linux update for Slackware 15.0 kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Amazon Linux AMI update for kernel