Memory leak in Linux kernel - CVE-2022-50543

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Main Vulnerability Database Vulnerabilities #VU116710

Memory leak in Linux kernel - CVE-2022-50543

Published: October 8, 2025 / Updated: October 27, 2025


Vulnerability identifier: #VU116710
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-2022-50543
CWE-ID: CWE-401
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 memory leak within the rxe_mr_alloc() and rxe_mr_init_user() functions in drivers/infiniband/sw/rxe/rxe_mr.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server for SAP Applications 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 Micro
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat Enterprise Linux for Real Time for NFV
Anolis OS
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
SUSE Linux Enterprise Live Patching
openSUSE Leap
IBM Qradar SIEM
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-SLE15-SP5_Update_32-debugsource
kernel-livepatch-5_14_21-150500_55_127-default
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-debug-modules
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug
kernel-debug-core
kernel-debug-devel
kernel-debug-modules-extra
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-abi-stablelists
kernel-doc
kernel-source-rt
kernel-rt
kernel-rt_debug
kselftests-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt-extra-debuginfo
dlm-kmp-rt-debuginfo
dlm-kmp-rt
reiserfs-kmp-rt
cluster-md-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-devel
kernel-rt_debug-debuginfo
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-livepatch
kernel-rt-optional-debuginfo
kernel-rt-optional
kernel-rt-livepatch-devel
kselftests-kmp-rt
kernel-rt-devel
kernel-syms-rt
kernel-rt_debug-vdso
kernel-rt-extra
gfs2-kmp-rt
kernel-rt-debugsource
kernel-rt-devel-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debugsource
kernel-devel-rt
kernel-rt_debug-devel-debuginfo
kernel-rt-vdso
dtb-apm
dtb-mediatek
dtb-nvidia
dtb-socionext
reiserfs-kmp-64kb-debuginfo
dtb-allwinner
dlm-kmp-64kb
dtb-amlogic
dtb-broadcom
gfs2-kmp-64kb
gfs2-kmp-64kb-debuginfo
dtb-rockchip
dtb-xilinx
dtb-marvell
kselftests-kmp-64kb
dlm-kmp-64kb-debuginfo
dtb-apple
dtb-amazon
dtb-altera
ocfs2-kmp-64kb
kernel-64kb-extra-debuginfo
reiserfs-kmp-default
kselftests-kmp-64kb-debuginfo
kernel-default-devel-debuginfo
kernel-default
kernel-default-debugsource
kernel-default-debuginfo
kernel-macros
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
kernel-obs-build-debugsource
cluster-md-kmp-default-debuginfo
kernel-default-devel
kernel-64kb-debuginfo
kernel-syms
kernel-obs-build
dlm-kmp-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default
cluster-md-kmp-default
kernel-64kb
kernel-64kb-devel-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-docs-html
kernel-obs-qa
dtb-exynos
kernel-default-optional
kernel-default-extra
kernel-default-optional-debuginfo
kernel-default-extra-debuginfo
kselftests-kmp-default
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-debuginfo
kselftests-kmp-default-debuginfo
kernel-source-vanilla
kernel-source
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-docs
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump
reiserfs-kmp-default-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb-debuginfo
reiserfs-kmp-64kb
dtb-arm
dtb-qcom
ocfs2-kmp-64kb-debuginfo
dtb-cavium
kernel-64kb-optional-debuginfo
cluster-md-kmp-64kb
dtb-freescale
kernel-kvmsmall-vdso-debuginfo
dtb-sprd
kernel-64kb-optional
dtb-lg
dtb-renesas
dtb-amd
dtb-hisilicon
dtb-aarch64
kernel-kvmsmall
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall-vdso
kernel-default-base-rebuild
kernel-default-base
IBM Security Verify Governance
Technical Support Appliance

How to mitigate CVE-2022-50543

Install update from vendor's repository.

Linux kernel - addressed in versions 6.0.16, 6.1.2, 6.2
IBM Qradar SIEM - update to 7.5.0 Update Pack 14 IF03
IBM Security Verify Governance - update to 10.0.2.0.7
kernel-livepatch-SLE15-SP5_Update_32-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_127-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo - update to 1-150500.11.3.1
Technical Support Appliance - update to 3.1.2
kernel (Red Hat package) - addressed in versions 4.18.0-372.175.1.el8_6, 4.18.0-477.124.1.el8_8, 4.18.0-553.89.1.el8_10
kernel-rt (Red Hat package) - update to 4.18.0-553.89.1.rt7.430.el8_10
kernel-debug-modules - update to 4.18.0-553.89.1.0.1
bpftool - update to 4.18.0-553.89.1.0.1
kernel - update to 4.18.0-553.89.1.0.1
kernel-core - update to 4.18.0-553.89.1.0.1
kernel-cross-headers - update to 4.18.0-553.89.1.0.1
kernel-debug - update to 4.18.0-553.89.1.0.1
kernel-debug-core - update to 4.18.0-553.89.1.0.1
kernel-debug-devel - update to 4.18.0-553.89.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.89.1.0.1
kernel-devel - update to 4.18.0-553.89.1.0.1
kernel-headers - update to 4.18.0-553.89.1.0.1
kernel-modules - update to 4.18.0-553.89.1.0.1
kernel-modules-extra - update to 4.18.0-553.89.1.0.1
kernel-tools - update to 4.18.0-553.89.1.0.1
kernel-tools-libs - update to 4.18.0-553.89.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.89.1.0.1
perf - update to 4.18.0-553.89.1.0.1
python3-perf - update to 4.18.0-553.89.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.89.1.0.1
kernel-doc - update to 4.18.0-553.89.1.0.1
kernel-source-rt - update to 5.14.21-150500.13.112.1
kernel-rt - update to 5.14.21-150500.13.112.1
kernel-rt_debug - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.112.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
dlm-kmp-rt - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch - update to 5.14.21-150500.13.112.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-optional - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-devel - update to 5.14.21-150500.13.112.1
kernel-syms-rt - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.112.1
kernel-rt-extra - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-debugsource - update to 5.14.21-150500.13.112.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.112.1
kernel-devel-rt - update to 5.14.21-150500.13.112.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-vdso - update to 5.14.21-150500.13.112.1
dtb-apm - update to 5.14.21-150500.55.127.1
dtb-mediatek - update to 5.14.21-150500.55.127.1
dtb-nvidia - update to 5.14.21-150500.55.127.1
dtb-socionext - update to 5.14.21-150500.55.127.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
dtb-allwinner - update to 5.14.21-150500.55.127.1
dlm-kmp-64kb - update to 5.14.21-150500.55.127.1
dtb-amlogic - update to 5.14.21-150500.55.127.1
dtb-broadcom - update to 5.14.21-150500.55.127.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.127.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
dtb-rockchip - update to 5.14.21-150500.55.127.1
dtb-xilinx - update to 5.14.21-150500.55.127.1
dtb-marvell - update to 5.14.21-150500.55.127.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.127.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
dtb-apple - update to 5.14.21-150500.55.127.1
dtb-amazon - update to 5.14.21-150500.55.127.1
dtb-altera - update to 5.14.21-150500.55.127.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.127.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.127.1
reiserfs-kmp-default - update to 5.14.21-150500.55.127.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-devel-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default - update to 5.14.21-150500.55.127.1
kernel-default-debugsource - update to 5.14.21-150500.55.127.1
kernel-default-debuginfo - update to 5.14.21-150500.55.127.1
kernel-macros - update to 5.14.21-150500.55.127.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
dlm-kmp-default - update to 5.14.21-150500.55.127.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.127.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-devel - update to 5.14.21-150500.55.127.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.127.1
kernel-syms - update to 5.14.21-150500.55.127.1
kernel-obs-build - update to 5.14.21-150500.55.127.1
dlm-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
ocfs2-kmp-default - update to 5.14.21-150500.55.127.1
gfs2-kmp-default - update to 5.14.21-150500.55.127.1
cluster-md-kmp-default - update to 5.14.21-150500.55.127.1
kernel-64kb - update to 5.14.21-150500.55.127.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.127.1
kernel-64kb-devel - update to 5.14.21-150500.55.127.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.127.1
kernel-docs-html - update to 5.14.21-150500.55.127.1
kernel-obs-qa - update to 5.14.21-150500.55.127.1
dtb-exynos - update to 5.14.21-150500.55.127.1
kernel-default-optional - update to 5.14.21-150500.55.127.1
kernel-default-extra - update to 5.14.21-150500.55.127.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.127.1
kselftests-kmp-default - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.127.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
kernel-source-vanilla - update to 5.14.21-150500.55.127.1
kernel-devel - update to 5.14.21-150500.55.127.1
kernel-source - update to 5.14.21-150500.55.127.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.127.1
kernel-default-livepatch - update to 5.14.21-150500.55.127.1
kernel-docs - update to 5.14.21-150500.55.127.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.127.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.127.1
kernel-zfcpdump - update to 5.14.21-150500.55.127.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.127.1
kernel-64kb-extra - update to 5.14.21-150500.55.127.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.127.1
dtb-arm - update to 5.14.21-150500.55.127.1
dtb-qcom - update to 5.14.21-150500.55.127.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.127.1
dtb-cavium - update to 5.14.21-150500.55.127.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.127.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.127.1
dtb-freescale - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.127.1
dtb-sprd - update to 5.14.21-150500.55.127.1
kernel-64kb-optional - update to 5.14.21-150500.55.127.1
dtb-lg - update to 5.14.21-150500.55.127.1
dtb-renesas - update to 5.14.21-150500.55.127.1
dtb-amd - update to 5.14.21-150500.55.127.1
dtb-hisilicon - update to 5.14.21-150500.55.127.1
dtb-aarch64 - update to 5.14.21-150500.55.127.1
kernel-kvmsmall - update to 5.14.21-150500.55.127.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-vdso - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.127.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.127.1.150500.6.61.1
kernel-default-base - update to 5.14.21-150500.55.127.1.150500.6.61.1

External References

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