Use-after-free in Linux kernel - CVE-2022-1998

Vulnerability identifier: #VU69338

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-1998

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the copy_event_to_user() function in Linux kernel. A local user can trigger a use-after-free error and escalate privileges on the system.

Linux kernel
Oracle Linux
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Real Time for NFV
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Live Patching
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Module for Public Cloud
SUSE Linux Enterprise Module for Legacy Software
SUSE Linux Enterprise Module for Development Tools
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Desktop
openSUSE Leap
openEuler
kernel-livepatch-5_14_21-150400_24_11-default
kernel-livepatch-SLE15-SP4_Update_1-debugsource
kernel-livepatch-5_14_21-150400_24_11-default-debuginfo
python3-perf-debuginfo
kernel
kernel-debugsource
python2-perf-debuginfo
kernel-tools-debuginfo
kernel-debuginfo
python2-perf
kernel-tools
bpftool
perf
perf-debuginfo
kernel-tools-devel
python3-perf
kernel-source
bpftool-debuginfo
kernel-devel
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-azure-devel
kernel-source-azure
kernel-devel-azure
cluster-md-kmp-azure
cluster-md-kmp-azure-debuginfo
dlm-kmp-azure
dlm-kmp-azure-debuginfo
gfs2-kmp-azure
gfs2-kmp-azure-debuginfo
kernel-azure
kernel-azure-debuginfo
kernel-azure-debugsource
reiserfs-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-extra
kernel-azure-extra-debuginfo
kernel-azure-livepatch-devel
kernel-azure-optional
kernel-azure-optional-debuginfo
kernel-syms-azure
kselftests-kmp-azure
kselftests-kmp-azure-debuginfo
ocfs2-kmp-azure
ocfs2-kmp-azure-debuginfo
reiserfs-kmp-azure
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
reiserfs-kmp-default
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-source-vanilla
kernel-macros
kernel-docs-html
kernel-docs
kselftests-kmp-default-debuginfo
reiserfs-kmp-64kb-debuginfo
reiserfs-kmp-64kb
ocfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb
kselftests-kmp-64kb-debuginfo
kselftests-kmp-64kb
kernel-64kb-optional-debuginfo
kernel-64kb-optional
kernel-64kb-livepatch-devel
kernel-64kb-extra-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-extra
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
dlm-kmp-default
dlm-kmp-default-debuginfo
gfs2-kmp-default
gfs2-kmp-default-debuginfo
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-devel
kernel-default-devel-debuginfo
kernel-64kb-extra
kernel-default-extra-debuginfo
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default-optional
kernel-default-optional-debuginfo
kernel-obs-build
kernel-obs-build-debugsource
kernel-obs-qa
kernel-syms
kselftests-kmp-default
kernel-debug-devel-debuginfo
kernel-64kb-devel-debuginfo
dtb-amlogic
dtb-amd
dtb-amazon
dtb-altera
dtb-allwinner
dlm-kmp-64kb-debuginfo
dlm-kmp-64kb
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-debug-livepatch-devel
dtb-apm
kernel-debug-devel
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall
dtb-renesas
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-64kb
gfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb
dtb-xilinx
dtb-sprd
dtb-socionext
dtb-rockchip
dtb-apple
dtb-qcom
dtb-nvidia
dtb-mediatek
dtb-marvell
dtb-lg
dtb-hisilicon
dtb-freescale
dtb-exynos
dtb-cavium
dtb-broadcom
dtb-arm
kernel-default-base-rebuild
kernel-default-base

Install updates from vendor's website.

kernel-livepatch-5_14_21-150400_24_11-default - update to 1-150400.9.5.3
kernel-livepatch-SLE15-SP4_Update_1-debugsource - update to 1-150400.9.5.3
kernel-livepatch-5_14_21-150400_24_11-default-debuginfo - update to 1-150400.9.5.3
python3-perf-debuginfo - update to 4.19.90-2204.4.0.0149
kernel - update to 4.19.90-2204.4.0.0149
kernel-debugsource - update to 4.19.90-2204.4.0.0149
python2-perf-debuginfo - update to 4.19.90-2204.4.0.0149
kernel-tools-debuginfo - update to 4.19.90-2204.4.0.0149
kernel-debuginfo - update to 4.19.90-2204.4.0.0149
python2-perf - update to 4.19.90-2204.4.0.0149
kernel-tools - update to 4.19.90-2204.4.0.0149
bpftool - update to 4.19.90-2204.4.0.0149
perf - update to 4.19.90-2204.4.0.0149
perf-debuginfo - update to 4.19.90-2204.4.0.0149
kernel-tools-devel - update to 4.19.90-2204.4.0.0149
python3-perf - update to 4.19.90-2204.4.0.0149
kernel-source - update to 4.19.90-2204.4.0.0149
bpftool-debuginfo - update to 4.19.90-2204.4.0.0149
kernel-devel - update to 4.19.90-2204.4.0.0149
kernel (Red Hat package) - update to 5.14.0-162.6.1.el9_1
kernel-rt (Red Hat package) - update to 5.14.0-162.6.1.rt21.168.el9_1
kernel-azure-devel - update to 5.14.21-150400.14.7.1
kernel-source-azure - update to 5.14.21-150400.14.7.1
kernel-devel-azure - update to 5.14.21-150400.14.7.1
cluster-md-kmp-azure - update to 5.14.21-150400.14.7.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
dlm-kmp-azure - update to 5.14.21-150400.14.7.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
gfs2-kmp-azure - update to 5.14.21-150400.14.7.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
kernel-azure - update to 5.14.21-150400.14.7.1
kernel-azure-debuginfo - update to 5.14.21-150400.14.7.1
kernel-azure-debugsource - update to 5.14.21-150400.14.7.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
kernel-azure-devel-debuginfo - update to 5.14.21-150400.14.7.1
kernel-azure-extra - update to 5.14.21-150400.14.7.1
kernel-azure-extra-debuginfo - update to 5.14.21-150400.14.7.1
kernel-azure-livepatch-devel - update to 5.14.21-150400.14.7.1
kernel-azure-optional - update to 5.14.21-150400.14.7.1
kernel-azure-optional-debuginfo - update to 5.14.21-150400.14.7.1
kernel-syms-azure - update to 5.14.21-150400.14.7.1
kselftests-kmp-azure - update to 5.14.21-150400.14.7.1
kselftests-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
ocfs2-kmp-azure - update to 5.14.21-150400.14.7.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.7.1
reiserfs-kmp-azure - update to 5.14.21-150400.14.7.1
kernel-devel - update to 5.14.21-150400.24.11.1
ocfs2-kmp-default - update to 5.14.21-150400.24.11.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
reiserfs-kmp-default - update to 5.14.21-150400.24.11.1
kernel-zfcpdump-debugsource - update to 5.14.21-150400.24.11.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150400.24.11.1
kernel-zfcpdump - update to 5.14.21-150400.24.11.1
kernel-source-vanilla - update to 5.14.21-150400.24.11.1
kernel-source - update to 5.14.21-150400.24.11.1
kernel-macros - update to 5.14.21-150400.24.11.1
kernel-docs-html - update to 5.14.21-150400.24.11.1
kernel-docs - update to 5.14.21-150400.24.11.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
reiserfs-kmp-64kb - update to 5.14.21-150400.24.11.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
ocfs2-kmp-64kb - update to 5.14.21-150400.24.11.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
kselftests-kmp-64kb - update to 5.14.21-150400.24.11.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.11.1
kernel-64kb-optional - update to 5.14.21-150400.24.11.1
kernel-64kb-livepatch-devel - update to 5.14.21-150400.24.11.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.11.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
kernel-default-extra - update to 5.14.21-150400.24.11.1
cluster-md-kmp-default - update to 5.14.21-150400.24.11.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
dlm-kmp-default - update to 5.14.21-150400.24.11.1
dlm-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
gfs2-kmp-default - update to 5.14.21-150400.24.11.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.11.1
kernel-default - update to 5.14.21-150400.24.11.1
kernel-default-debuginfo - update to 5.14.21-150400.24.11.1
kernel-default-debugsource - update to 5.14.21-150400.24.11.1
kernel-default-devel - update to 5.14.21-150400.24.11.1
kernel-default-devel-debuginfo - update to 5.14.21-150400.24.11.1
kernel-64kb-extra - update to 5.14.21-150400.24.11.1
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.11.1
kernel-default-livepatch - update to 5.14.21-150400.24.11.1
kernel-default-livepatch-devel - update to 5.14.21-150400.24.11.1
kernel-default-optional - update to 5.14.21-150400.24.11.1
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.11.1
kernel-obs-build - update to 5.14.21-150400.24.11.1
kernel-obs-build-debugsource - update to 5.14.21-150400.24.11.1
kernel-obs-qa - update to 5.14.21-150400.24.11.1
kernel-syms - update to 5.14.21-150400.24.11.1
kselftests-kmp-default - update to 5.14.21-150400.24.11.1
kernel-debug-devel-debuginfo - update to 5.14.21-150400.24.11.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150400.24.11.1
dtb-amlogic - update to 5.14.21-150400.24.11.1
dtb-amd - update to 5.14.21-150400.24.11.1
dtb-amazon - update to 5.14.21-150400.24.11.1
dtb-altera - update to 5.14.21-150400.24.11.1
dtb-allwinner - update to 5.14.21-150400.24.11.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
dlm-kmp-64kb - update to 5.14.21-150400.24.11.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
cluster-md-kmp-64kb - update to 5.14.21-150400.24.11.1
kernel-debug-livepatch-devel - update to 5.14.21-150400.24.11.1
dtb-apm - update to 5.14.21-150400.24.11.1
kernel-debug-devel - update to 5.14.21-150400.24.11.1
kernel-debug-debugsource - update to 5.14.21-150400.24.11.1
kernel-debug-debuginfo - update to 5.14.21-150400.24.11.1
kernel-debug - update to 5.14.21-150400.24.11.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150400.24.11.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.11.1
kernel-kvmsmall-devel - update to 5.14.21-150400.24.11.1
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.11.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.11.1
kernel-kvmsmall - update to 5.14.21-150400.24.11.1
dtb-renesas - update to 5.14.21-150400.24.11.1
kernel-64kb-devel - update to 5.14.21-150400.24.11.1
kernel-64kb-debugsource - update to 5.14.21-150400.24.11.1
kernel-64kb-debuginfo - update to 5.14.21-150400.24.11.1
kernel-64kb - update to 5.14.21-150400.24.11.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.11.1
gfs2-kmp-64kb - update to 5.14.21-150400.24.11.1
dtb-xilinx - update to 5.14.21-150400.24.11.1
dtb-sprd - update to 5.14.21-150400.24.11.1
dtb-socionext - update to 5.14.21-150400.24.11.1
dtb-rockchip - update to 5.14.21-150400.24.11.1
dtb-apple - update to 5.14.21-150400.24.11.1
dtb-qcom - update to 5.14.21-150400.24.11.1
dtb-nvidia - update to 5.14.21-150400.24.11.1
dtb-mediatek - update to 5.14.21-150400.24.11.1
dtb-marvell - update to 5.14.21-150400.24.11.1
dtb-lg - update to 5.14.21-150400.24.11.1
dtb-hisilicon - update to 5.14.21-150400.24.11.1
dtb-freescale - update to 5.14.21-150400.24.11.1
dtb-exynos - update to 5.14.21-150400.24.11.1
dtb-cavium - update to 5.14.21-150400.24.11.1
dtb-broadcom - update to 5.14.21-150400.24.11.1
dtb-arm - update to 5.14.21-150400.24.11.1
kernel-default-base-rebuild - update to 5.14.21-150400.24.11.1.150400.24.3.6
kernel-default-base - update to 5.14.21-150400.24.11.1.150400.24.3.6

• https://seclists.org/oss-sec/2022/q1/99
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/notify/fanotify/fanotify_user.c?h=v5.17&id=ee12595147ac1fbfb5bcb23837e26dd58d94b15d
• https://security.netapp.com/advisory/ntap-20220707-0009/

• Privilege escalation in Linux kernel File System
• Red Hat Enterprise Linux 9 update for kernel-rt
• Red Hat Enterprise Linux 9 update for kernel
• Multiple vulnerabilities in Oracle Linux
• openEuler update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel