Out-of-bounds read in Linux kernel - CVE-2022-50394

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Main Vulnerability Database Vulnerabilities #VU115909

Out-of-bounds read in Linux kernel - CVE-2022-50394

Published: September 19, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115909
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-2022-50394
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to an out-of-bounds read error within the ismt_access() function in drivers/i2c/busses/i2c-ismt.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Live Patching
openSUSE Leap
kgraft-patch-4_12_14-122_280-default
kernel-livepatch-SLE15-SP4_Update_45-debugsource
kernel-livepatch-5_14_21-150400_24_179-default-debuginfo
kernel-livepatch-5_14_21-150400_24_179-default
kernel-livepatch-SLE15-SP5_Update_31-debugsource
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo
kernel-livepatch-5_14_21-150500_55_124-default
dlm-kmp-default
gfs2-kmp-default-debuginfo
kernel-syms
kernel-default-base
gfs2-kmp-default
kernel-default-debugsource
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
kernel-default-devel
ocfs2-kmp-default
kernel-default-debuginfo
kernel-default-base-debuginfo
kernel-default
kernel-source
kernel-devel
kernel-macros
kernel-default-man
kernel-default-devel-debuginfo
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-rt-debuginfo
kernel-source-rt
kernel-rt-debugsource
kernel-rt
reiserfs-kmp-64kb
kernel-obs-qa
kernel-default-livepatch-devel
dtb-socionext
kernel-64kb-debuginfo
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-aarch64
dtb-sprd
ocfs2-kmp-64kb
kernel-default-optional-debuginfo
reiserfs-kmp-default-debuginfo
kselftests-kmp-default
kselftests-kmp-default-debuginfo
reiserfs-kmp-default
kernel-default-extra
kernel-default-optional
kernel-obs-build-debugsource
kernel-obs-build
kernel-default-extra-debuginfo
kernel-default-livepatch
dtb-xilinx
dtb-nvidia
dtb-amazon
dlm-kmp-64kb-debuginfo
dtb-amd
kselftests-kmp-64kb
dtb-apple
cluster-md-kmp-64kb
dtb-qcom
kernel-64kb-optional
dtb-mediatek
cluster-md-kmp-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
dtb-allwinner
dtb-marvell
kernel-64kb-devel-debuginfo
kernel-64kb-devel
dlm-kmp-64kb
dtb-rockchip
kernel-64kb
dtb-arm
kernel-64kb-extra-debuginfo
dtb-hisilicon
gfs2-kmp-64kb-debuginfo
dtb-cavium
dtb-broadcom
ocfs2-kmp-64kb-debuginfo
dtb-freescale
dtb-lg
dtb-apm
kernel-64kb-optional-debuginfo
kernel-64kb-debugsource
dtb-exynos
gfs2-kmp-64kb
kernel-64kb-extra
dtb-altera
kselftests-kmp-64kb-debuginfo
dtb-renesas
dtb-amlogic
kernel-kvmsmall-devel
kernel-docs
kernel-docs-html
kernel-source-vanilla
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-default-base-rebuild
kernel-rt-vdso
kernel-rt-extra
kselftests-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt-optional
kernel-rt_debug-debuginfo
kernel-rt-livepatch-devel
kernel-rt-devel
cluster-md-kmp-rt
kernel-rt-vdso-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt_debug-vdso
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-devel
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-livepatch
kernel-syms-rt
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt
kernel-rt_debug-vdso-debuginfo
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-devel-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
kernel-rt-devel-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt_debug
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso

How to mitigate CVE-2022-50394

Install update from vendor's repository.

Linux kernel - update to 5.4.229
kgraft-patch-4_12_14-122_280-default - update to 1-8.5.1
kernel-livepatch-SLE15-SP4_Update_45-debugsource - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_179-default-debuginfo - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_179-default - update to 1-150400.9.3.1
kernel-livepatch-SLE15-SP5_Update_31-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_124-default - update to 1-150500.11.3.1
dlm-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-syms - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-base - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1.150400.24.92.1, 5.14.21-150500.55.124.1.150500.6.59.1
gfs2-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debugsource - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-devel - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-base-debuginfo - update to 4.12.14-122.280.1
kernel-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-source - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-devel - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-macros - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-man - update to 4.12.14-122.280.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-kgraft - update to 4.12.14-122.280.1
kernel-default-kgraft-devel - update to 4.12.14-122.280.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-rt - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-socionext - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-sprd - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amazon - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amd - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-apple - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-qcom - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-marvell - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-arm - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-cavium - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-freescale - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-lg - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-apm - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-exynos - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-altera - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-renesas - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-docs - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.179.1.150400.24.92.1, 5.14.21-150500.55.124.1.150500.6.59.1
kernel-rt-vdso - update to 5.14.21-150500.13.109.1
kernel-rt-extra - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-optional - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.109.1
kernel-rt-devel - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch - update to 5.14.21-150500.13.109.1
kernel-syms-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.109.1
kernel-devel-rt - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug - update to 5.14.21-150500.13.109.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso - update to 5.14.21-150500.55.124.1

External References

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