Use-after-free in Linux kernel - CVE-2022-2602

Vulnerability identifier: #VU68423

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear

CVE-ID: CVE-2022-2602

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: Public exploit is available

Affected software:
Linux kernel
Debian Linux
Amazon Linux AMI
Oracle Linux
SUSE Linux Enterprise Server 15 SP5
SUSE Enterprise Server 15 SP3 Business Critical
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
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 Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Anolis OS
SUSE Enterprise Storage
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Real Time Extension
Slackware Linux
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Live Patching
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Module for Legacy Software
SUSE Linux Enterprise Module for Development Tools
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Real Time
SUSE Linux Enterprise Module for Realtime
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Module for Public Cloud
openSUSE Leap
Ubuntu
openEuler
kernel-livepatch-SLE15-SP2_Update_32-debugsource
kernel-livepatch-5_3_18-150200_24_139-default-debuginfo
kernel-livepatch-5_3_18-150200_24_139-default
kernel-livepatch-5_3_18-150300_59_221-default-debuginfo
kernel-livepatch-SLE15-SP3_Update_62-debugsource
kernel-livepatch-5_3_18-150300_59_221-default
kernel-livepatch-5_3_18-150300_59_221-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_221-preempt
kernel-livepatch-5_3_18-150300_59_106-default
kernel-livepatch-5_14_21-150400_15_5-rt
kernel-livepatch-SLE15-SP4-RT_Update_1-debugsource
kernel-livepatch-5_14_21-150400_15_5-rt-debuginfo
kernel-livepatch-5_14_21-150400_24_179-default
kernel-livepatch-5_14_21-150400_24_179-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_45-debugsource
kernel-livepatch-5_14_21-150400_24_38-default
kernel-livepatch-5_14_21-150400_24_38-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_6-debugsource
kernel-livepatch-5_14_21-150500_55_124-default
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_31-debugsource
kernel-livepatch-5_3_18-150300_59_101-default
kernel-livepatch-5_14_21-150400_24_33-default
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_5-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt-base-debuginfo
kernel-rt-base
kernel-rt
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
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dlm-kmp-rt
kernel-rt_debug-debugsource
cluster-md-kmp-rt
kernel-rt-devel
kernel-source-rt
kernel-devel-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug
kernel-rt_debug-debuginfo
ocfs2-kmp-rt
kernel-syms-rt
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-devel
kernel-tools-debuginfo
python2-perf-debuginfo
kernel-tools-devel
python2-perf
bpftool-debuginfo
python3-perf
perf
python3-perf-debuginfo
kernel-devel
kernel
kernel-source
kernel-debugsource
perf-debuginfo
bpftool
kernel-tools
kernel-debuginfo
kernel-debug-devel
kernel-headers
kernel-modules-internal
kernel-debug-modules-extra
kernel-debug
kernel-debug-core
kernel-debug-modules
kernel-tools-libs-devel
kernel-modules-extra
kernel-core
kernel-modules
python-perf
kernel-tools-libs
kernel-livepatch-5_3_18-150200_24_134-default
kernel-livepatch-5_3_18-150200_24_134-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_30-debugsource
kernel-livepatch-5_3_18-150200_24_129-default-debuginfo
kernel-livepatch-5_3_18-150200_24_129-default
kernel-livepatch-SLE15-SP2_Update_31-debugsource
kernel-livepatch-5_3_18-150300_59_98-default
kernel-livepatch-SLE15-SP4_Update_4-debugsource
kernel-livepatch-5_14_21-150400_24_28-default-debuginfo
kernel-livepatch-5_14_21-150400_24_28-default
kernel-default-debugsource
kernel-macros
kernel-docs
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-syms
kernel-obs-build-debugsource
kernel-obs-build
kernel-default-devel-debuginfo
kernel-default-devel
kernel-default
kernel-default-debuginfo
kernel-preempt-debuginfo
ocfs2-kmp-default-debuginfo
ocfs2-kmp-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-default-livepatch-devel
kernel-default-livepatch
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debugsource
kernel-preempt
kernel-default-base
kernel-source-azure
reiserfs-kmp-azure-debuginfo
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
kernel-azure-devel
kernel-azure-devel-debuginfo
kernel-azure-extra-debuginfo
kernel-devel-azure
reiserfs-kmp-azure
ocfs2-kmp-azure-debuginfo
ocfs2-kmp-azure
kselftests-kmp-azure-debuginfo
kselftests-kmp-azure
kernel-syms-azure
kernel-azure-optional-debuginfo
kernel-azure-optional
kernel-azure-livepatch-devel
kernel-azure-extra
cluster-md-kmp-64kb-debuginfo
dlm-kmp-64kb
dlm-kmp-64kb-debuginfo
dtb-allwinner
gfs2-kmp-preempt
cluster-md-kmp-64kb
kernel-kvmsmall-livepatch-devel
ocfs2-kmp-preempt
gfs2-kmp-preempt-debuginfo
kernel-preempt-extra
kernel-preempt-extra-debuginfo
kernel-preempt-livepatch-devel
kernel-preempt-optional
kernel-preempt-optional-debuginfo
kselftests-kmp-preempt
kselftests-kmp-preempt-debuginfo
kernel-kvmsmall-devel-debuginfo
ocfs2-kmp-preempt-debuginfo
reiserfs-kmp-preempt
reiserfs-kmp-preempt-debuginfo
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel-debuginfo
kernel-debug-livepatch-devel
kernel-kvmsmall
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
ocfs2-kmp-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-extra
kernel-64kb-extra-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-optional
kernel-64kb-optional-debuginfo
kselftests-kmp-64kb
kselftests-kmp-64kb-debuginfo
ocfs2-kmp-64kb
kernel-64kb-debuginfo
reiserfs-kmp-64kb
reiserfs-kmp-64kb-debuginfo
kernel-docs-html
kernel-source-vanilla
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-mediatek
dtb-amd
dtb-amlogic
dtb-apm
dtb-arm
dtb-broadcom
dtb-cavium
dtb-exynos
dtb-freescale
dtb-hisilicon
dtb-lg
dtb-marvell
dtb-altera
dtb-nvidia
dtb-qcom
dtb-renesas
dtb-rockchip
dtb-socionext
dtb-sprd
dtb-xilinx
gfs2-kmp-64kb
gfs2-kmp-64kb-debuginfo
kernel-64kb
kernel-default-extra-debuginfo
kernel-default-extra
dlm-kmp-preempt
dtb-zte
dtb-al
dlm-kmp-preempt-debuginfo
kernel-default-optional
cluster-md-kmp-preempt-debuginfo
cluster-md-kmp-preempt
kselftests-kmp-default-debuginfo
kernel-obs-qa
kernel-default-optional-debuginfo
kselftests-kmp-default
kernel-default-base-rebuild
dtb-aarch64
linux-image-generic (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-131-lowlatency (Ubuntu package)
linux-image-5.4.0-131-generic (Ubuntu package)
linux-image-5.4.0-131-generic-lpae (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-generic-lpae-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1036-ibm (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1049-bluefield (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.4.0-1056-gkeop (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1073-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.4.0-1078-kvm (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1086-gke (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gke-5.4 (Ubuntu package)
linux-image-5.4.0-1086-oracle (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1088-aws (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1092-gcp (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1094-azure (Ubuntu package)
linux (Debian package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-5.14.0-1054-oem (Ubuntu package)
dtb-amazon
dtb-apple
kernel-rt-vdso-debuginfo
kernel-rt-livepatch-devel
kernel-rt-optional
reiserfs-kmp-rt-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt-extra
kernel-rt-vdso
kernel-rt-livepatch
kernel-rt_debug-vdso-debuginfo
kernel-rt-optional-debuginfo
kernel-rt_debug-vdso
kernel-rt-extra-debuginfo
kselftests-kmp-rt
reiserfs-kmp-rt
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-5.15.0-52-generic-64k (Ubuntu package)
linux-image-5.15.0-52-generic-lpae (Ubuntu package)
linux-image-5.15.0-52-lowlatency (Ubuntu package)
linux-image-5.15.0-52-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-52-generic (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1007-gkeop (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1017-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1017-raspi (Ubuntu package)
linux-image-5.15.0-1017-ibm (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1019-gke (Ubuntu package)
linux-image-5.15.0-1020-kvm (Ubuntu package)
linux-image-5.15.0-1021-oracle (Ubuntu package)
linux-image-5.15.0-1021-gcp (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1022-aws (Ubuntu package)
linux-image-5.15.0-1022-azure (Ubuntu package)
linux-image-5.15.0-1024-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-5.15.80/kernel-modules
linux-5.15.80/kernel-generic
linux-5.15.80/kernel-huge
linux-5.15.80/kernel-headers
linux-image-oem-22.04 (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-5.17.0-1020-oem (Ubuntu package)
linux-image-5.19.0-23-generic-lpae (Ubuntu package)
linux-image-5.19.0-23-generic-64k (Ubuntu package)
linux-image-5.19.0-23-generic (Ubuntu package)
linux-image-5.19.0-1006-raspi-nolpae (Ubuntu package)
linux-image-5.19.0-1006-raspi (Ubuntu package)
linux-image-5.19.0-1009-lowlatency (Ubuntu package)
linux-image-5.19.0-1009-lowlatency-64k (Ubuntu package)
linux-image-5.19.0-1010-ibm (Ubuntu package)
linux-image-5.19.0-1010-azure (Ubuntu package)
linux-image-5.19.0-1010-gcp (Ubuntu package)
linux-image-5.19.0-1010-kvm (Ubuntu package)
linux-image-5.19.0-1010-oracle (Ubuntu package)
linux-image-5.19.0-1011-aws (Ubuntu package)
kernel-livepatch-5_3_18-150300_59_93-default
kernel-livepatch-5_14_21-150400_24_21-default
kernel-livepatch-5_14_21-150400_24_21-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_3-debugsource
kernel-livepatch-SLE15-SP2_Update_29-debugsource
kernel-livepatch-5_3_18-150200_24_126-default-debuginfo
kernel-livepatch-5_3_18-150200_24_126-default
kernel-livepatch-5_3_18-150300_59_90-default
kernel-livepatch-5_14_21-150400_24_18-default
kernel-livepatch-SLE15-SP4_Update_1-debugsource
kernel-livepatch-5_14_21-150400_24_11-default-debuginfo
kernel-livepatch-5_14_21-150400_24_11-default
kernel-livepatch-5_3_18-150300_59_87-default
kernel-livepatch-5_3_18-150300_59_76-default
kernel-livepatch-SLE15-SP2_Update_27-debugsource
kernel-livepatch-5_3_18-150200_24_115-default-debuginfo
kernel-livepatch-5_3_18-150200_24_115-default
kernel-livepatch-5_3_18-150300_59_71-default
kernel-livepatch-SLE15-SP4_Update_0-debugsource
kernel-livepatch-5_14_21-150400_22-default-debuginfo
kernel-livepatch-5_14_21-150400_22-default
kernel-livepatch-5_3_18-150300_59_68-default
kernel-livepatch-SLE15-SP2_Update_26-debugsource
kernel-livepatch-5_3_18-150200_24_112-default-debuginfo
kernel-livepatch-5_3_18-150200_24_112-default
kernel-livepatch-5_3_18-150300_59_63-default
kernel-livepatch-5_3_18-150300_59_60-default
kernel-livepatch-SLE15-SP2_Update_25-debugsource
kernel-livepatch-5_3_18-24_107-default-debuginfo
kernel-livepatch-5_3_18-24_107-default
kernel-livepatch-5_3_18-150300_59_54-default
kernel-livepatch-SLE15-SP2_Update_24-debugsource
kernel-livepatch-5_3_18-24_102-default-debuginfo
kernel-livepatch-5_3_18-24_102-default
kernel-livepatch-5_3_18-150300_59_49-default
kernel-livepatch-5_3_18-24_99-default
kernel-livepatch-5_3_18-24_99-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_23-debugsource
kernel-livepatch-5_3_18-150300_59_46-default-debuginfo
kernel-livepatch-5_3_18-150300_59_46-default
kernel-livepatch-5_3_18-150300_59_43-default-debuginfo
kernel-livepatch-5_3_18-150300_59_43-default
Dell EMC VxRail Appliance

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

The vulnerability exists due to a use-after-free error caused by an io_uring request, which is being processed on a registered file. The Unix GC runs and frees the io_uring file descriptor and all the registered file descriptors in a specific order that may allow a local user to win a race and execute arbitrary code with elevated privileges.

Install update from vendor's website.

• https://seclists.org/oss-sec/2022/q4/30
• https://www.zerodayinitiative.com/advisories/ZDI-22-1462/