Integer underflow in Linux kernel - CVE-2022-49969

Vulnerability identifier: #VU111624

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-2022-49969

CWE-ID: CWE-191

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the optc1_enable_optc_clock() function in drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c. A local user can execute arbitrary code.

Linux kernel
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
SUSE Linux Enterprise Live Patching
openSUSE Leap
openEuler
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kgraft-patch-4_12_14-122_269-default
kernel-livepatch-SLE15-SP4_Update_42-debugsource
kernel-livepatch-5_14_21-150400_24_170-default-debuginfo
kernel-livepatch-5_14_21-150400_24_170-default
kernel-livepatch-5_14_21-150500_55_113-default
kernel-livepatch-SLE15-SP5_Update_28-debugsource
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo
kernel-default-kgraft
kernel-syms
dlm-kmp-default-debuginfo
kernel-default-kgraft-devel
cluster-md-kmp-default-debuginfo
kernel-default-devel-debuginfo
kernel-default-man
kernel-devel
kernel-source
kernel-macros
kernel-default
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
dlm-kmp-default
cluster-md-kmp-default
kernel-default-base
gfs2-kmp-default
kernel-default-devel
kernel-default-debuginfo
kernel-default-debugsource
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
kernel (Red Hat package)
kernel
bpftool
bpftool-debuginfo
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-debuginfo
kernel-debugsource
kernel-rt (Red Hat package)
dtb-apm
dtb-sprd
dtb-amlogic
dtb-cavium
dtb-broadcom
dtb-marvell
dtb-rockchip
dtb-socionext
dtb-hisilicon
dtb-xilinx
dtb-lg
dtb-mediatek
dtb-freescale
dtb-altera
dtb-allwinner
dtb-amazon
dtb-nvidia
kernel-source-vanilla
dtb-aarch64
dtb-qcom
kernel-docs-html
dtb-renesas
dtb-amd
kernel-obs-qa
dtb-exynos
dtb-apple
dtb-arm
kernel-docs
kernel-default-livepatch
kernel-default-extra
kernel-obs-build-debugsource
reiserfs-kmp-default
kernel-kvmsmall-debuginfo
kernel-obs-build
kselftests-kmp-default
kernel-default-extra-debuginfo
kernel-kvmsmall-devel
kernel-default-optional-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-default-livepatch-devel
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-default-optional
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
reiserfs-kmp-64kb
reiserfs-kmp-64kb-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-64kb-extra-debuginfo
kselftests-kmp-64kb
gfs2-kmp-64kb
dlm-kmp-64kb
dlm-kmp-64kb-debuginfo
ocfs2-kmp-64kb
kselftests-kmp-default-debuginfo
kernel-64kb
cluster-md-kmp-64kb
reiserfs-kmp-default-debuginfo
kernel-64kb-debugsource
kernel-64kb-optional-debuginfo
kernel-64kb-optional
kselftests-kmp-64kb-debuginfo
kernel-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
cluster-md-kmp-64kb-debuginfo
kernel-64kb-extra
kernel-default-base-rebuild

Install update from vendor's repository.

Linux kernel - addressed in versions 4.19.257, 5.4.212, 5.10.141, 5.15.65, 5.19.7, 6.0
kgraft-patch-4_12_14-122_269-default - update to 1-8.3.1
kernel-livepatch-SLE15-SP4_Update_42-debugsource - update to 1-150400.9.3.2
kernel-livepatch-5_14_21-150400_24_170-default-debuginfo - update to 1-150400.9.3.2
kernel-livepatch-5_14_21-150400_24_170-default - update to 1-150400.9.3.2
kernel-livepatch-5_14_21-150500_55_113-default - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_28-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo - update to 1-150500.11.3.1
kernel-default-kgraft - update to 4.12.14-122.269.1
kernel-syms - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-kgraft-devel - update to 4.12.14-122.269.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-man - update to 4.12.14-122.269.1
kernel-devel - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.1
kernel-source - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.1
kernel-macros - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.1
kernel-default - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2, 5.14.21-150500.55.113.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-base-debuginfo - update to 4.12.14-122.269.1
dlm-kmp-default - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
cluster-md-kmp-default - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-base - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2.150400.24.86.2
gfs2-kmp-default - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-devel - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel-default-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2, 5.14.21-150500.55.113.1
kernel-default-debugsource - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2, 5.14.21-150500.55.113.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.269.1, 5.14.21-150400.24.170.2
kernel (Red Hat package) - addressed in versions 4.18.0-193.173.1.el8_2, 4.18.0-305.179.1.el8_4, 4.18.0-372.164.1.el8_6, 5.14.0-70.148.1.el9_0
kernel - update to 4.19.90-2507.2.0.0335
bpftool - update to 4.19.90-2507.2.0.0335
bpftool-debuginfo - update to 4.19.90-2507.2.0.0335
python3-perf-debuginfo - update to 4.19.90-2507.2.0.0335
python3-perf - update to 4.19.90-2507.2.0.0335
python2-perf-debuginfo - update to 4.19.90-2507.2.0.0335
python2-perf - update to 4.19.90-2507.2.0.0335
perf-debuginfo - update to 4.19.90-2507.2.0.0335
perf - update to 4.19.90-2507.2.0.0335
kernel-tools-devel - update to 4.19.90-2507.2.0.0335
kernel-tools-debuginfo - update to 4.19.90-2507.2.0.0335
kernel-tools - update to 4.19.90-2507.2.0.0335
kernel-source - update to 4.19.90-2507.2.0.0335
kernel-devel - update to 4.19.90-2507.2.0.0335
kernel-debuginfo - update to 4.19.90-2507.2.0.0335
kernel-debugsource - update to 4.19.90-2507.2.0.0335
kernel-rt (Red Hat package) - update to 5.14.0-70.148.1.rt21.220.el9_0
dtb-apm - update to 5.14.21-150400.24.170.1
dtb-sprd - update to 5.14.21-150400.24.170.1
dtb-amlogic - update to 5.14.21-150400.24.170.1
dtb-cavium - update to 5.14.21-150400.24.170.1
dtb-broadcom - update to 5.14.21-150400.24.170.1
dtb-marvell - update to 5.14.21-150400.24.170.1
dtb-rockchip - update to 5.14.21-150400.24.170.1
dtb-socionext - update to 5.14.21-150400.24.170.1
dtb-hisilicon - update to 5.14.21-150400.24.170.1
dtb-xilinx - update to 5.14.21-150400.24.170.1
dtb-lg - update to 5.14.21-150400.24.170.1
dtb-mediatek - update to 5.14.21-150400.24.170.1
dtb-freescale - update to 5.14.21-150400.24.170.1
dtb-altera - update to 5.14.21-150400.24.170.1
dtb-allwinner - update to 5.14.21-150400.24.170.1
dtb-amazon - update to 5.14.21-150400.24.170.1
dtb-nvidia - update to 5.14.21-150400.24.170.1
kernel-source-vanilla - update to 5.14.21-150400.24.170.1
dtb-aarch64 - update to 5.14.21-150400.24.170.1
dtb-qcom - update to 5.14.21-150400.24.170.1
kernel-docs-html - update to 5.14.21-150400.24.170.1
dtb-renesas - update to 5.14.21-150400.24.170.1
dtb-amd - update to 5.14.21-150400.24.170.1
kernel-obs-qa - update to 5.14.21-150400.24.170.1
dtb-exynos - update to 5.14.21-150400.24.170.1
dtb-apple - update to 5.14.21-150400.24.170.1
dtb-arm - update to 5.14.21-150400.24.170.1
kernel-docs - update to 5.14.21-150400.24.170.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.170.2, 5.14.21-150500.55.113.1
kernel-default-extra - update to 5.14.21-150400.24.170.2
kernel-obs-build-debugsource - update to 5.14.21-150400.24.170.2
reiserfs-kmp-default - update to 5.14.21-150400.24.170.2
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.170.2
kernel-obs-build - update to 5.14.21-150400.24.170.2
kselftests-kmp-default - update to 5.14.21-150400.24.170.2
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.170.2
kernel-kvmsmall-devel - update to 5.14.21-150400.24.170.2
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.170.2
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.170.2
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.170.2
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.170.2, 5.14.21-150500.55.113.1
kernel-64kb-devel - update to 5.14.21-150400.24.170.2
kernel-64kb-devel-debuginfo - update to 5.14.21-150400.24.170.2
kernel-default-optional - update to 5.14.21-150400.24.170.2
kernel-kvmsmall - update to 5.14.21-150400.24.170.2
kernel-zfcpdump - update to 5.14.21-150400.24.170.2
kernel-zfcpdump-debugsource - update to 5.14.21-150400.24.170.2
kernel-zfcpdump-debuginfo - update to 5.14.21-150400.24.170.2
reiserfs-kmp-64kb - update to 5.14.21-150400.24.170.2
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.170.2
kselftests-kmp-64kb - update to 5.14.21-150400.24.170.2
gfs2-kmp-64kb - update to 5.14.21-150400.24.170.2
dlm-kmp-64kb - update to 5.14.21-150400.24.170.2
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
ocfs2-kmp-64kb - update to 5.14.21-150400.24.170.2
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb - update to 5.14.21-150400.24.170.2
cluster-md-kmp-64kb - update to 5.14.21-150400.24.170.2
reiserfs-kmp-default-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb-debugsource - update to 5.14.21-150400.24.170.2
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb-optional - update to 5.14.21-150400.24.170.2
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb-debuginfo - update to 5.14.21-150400.24.170.2
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.170.2
kernel-64kb-extra - update to 5.14.21-150400.24.170.2
kernel-default-base-rebuild - update to 5.14.21-150400.24.170.2.150400.24.86.2

• https://git.kernel.org/stable/c/3101839b080137c367f3f88c2a040f791de880aa
• https://git.kernel.org/stable/c/3c1dfeaeb3b4e3ea656041da1241e6ee3c3b3202
• https://git.kernel.org/stable/c/443687798d6f094412b7312b64b3bb4d99aedff7
• https://git.kernel.org/stable/c/5ee30bcfdb32526233d2572f3d9ec371928679f1
• https://git.kernel.org/stable/c/814b756d4ec3a8728debb116cf49005feada7750
• https://git.kernel.org/stable/c/b2a93490201300a749ad261b5c5d05cb50179c44
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.257
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.141
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.65
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.212
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0

• Integer underflow in Linux kernel dc dcn10 driver
• openEuler 20.03 LTS SP4 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Red Hat Enterprise Linux 9 update for kernel-rt
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• SUSE update for the Linux Kernel
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• SUSE update for the Linux Kernel