Memory leak in Linux kernel - CVE-2022-50738

Vulnerability identifier: #VU120328

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-2022-50738

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to memory leak within the DEFINE_IDA(), vhost_vdpa_remove_as() and vhost_vdpa_cleanup() functions in drivers/vhost/vdpa.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 15 SP5
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 Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
openSUSE Leap
kernel-livepatch-SLE15-SP5_Update_34-debugsource
kernel-livepatch-5_14_21-150500_55_133-default
kernel-livepatch-5_14_21-150500_55_133-default-debuginfo
dlm-kmp-rt-debuginfo
kernel-source-rt
ocfs2-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt_debug-debuginfo
reiserfs-kmp-rt
kernel-rt-extra
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-livepatch
kernel-rt_debug-devel-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt
kernel-rt_debug
kernel-rt
kernel-devel-rt
kernel-rt-vdso-debuginfo
ocfs2-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt-livepatch-devel
kernel-rt-debugsource
kernel-rt-devel
kselftests-kmp-rt
kernel-rt_debug-vdso
kernel-rt_debug-devel
kernel-rt_debug-debugsource
reiserfs-kmp-rt-debuginfo
kernel-rt-optional
kernel-rt-vdso
kernel-rt-optional-debuginfo
kselftests-kmp-rt-debuginfo
kernel-syms-rt
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso-debuginfo
kselftests-kmp-64kb-debuginfo
dtb-amlogic
dlm-kmp-64kb
dtb-exynos
kernel-obs-qa
gfs2-kmp-64kb-debuginfo
dtb-apple
dlm-kmp-64kb-debuginfo
kernel-64kb-extra-debuginfo
reiserfs-kmp-64kb
kernel-64kb-extra
dtb-allwinner
dtb-freescale
dtb-lg
dtb-amazon
dtb-aarch64
kernel-kvmsmall
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall-vdso
dtb-xilinx
dtb-socionext
dtb-hisilicon
dtb-altera
dtb-cavium
kernel-64kb-optional
reiserfs-kmp-64kb-debuginfo
kselftests-kmp-64kb
cluster-md-kmp-64kb-debuginfo
dtb-qcom
dtb-amd
dtb-mediatek
dtb-apm
gfs2-kmp-64kb
ocfs2-kmp-64kb
kernel-64kb-optional-debuginfo
dtb-sprd
dtb-broadcom
cluster-md-kmp-64kb
dtb-arm
dtb-nvidia
dtb-rockchip
dtb-renesas
ocfs2-kmp-64kb-debuginfo
dtb-marvell
kernel-default-devel
kernel-default-extra
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-64kb
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default
kernel-obs-build
cluster-md-kmp-default
kernel-obs-build-debugsource
gfs2-kmp-default-debuginfo
kernel-64kb-debuginfo
dlm-kmp-default
kernel-syms
gfs2-kmp-default
kernel-default-devel-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-macros
kernel-default-debuginfo
kernel-default-debugsource
kernel-default
kernel-docs-html
kernel-default-extra-debuginfo
kselftests-kmp-default
kernel-default-optional
kselftests-kmp-default-debuginfo
kernel-default-optional-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-source
kernel-source-vanilla
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-docs
kernel-devel
kernel-default-base-rebuild
kernel-default-base

Install update from vendor's repository.

Linux kernel - addressed in versions 6.0.19, 6.1.5, 6.2
kernel-livepatch-SLE15-SP5_Update_34-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_133-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_133-default-debuginfo - update to 1-150500.11.3.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
kernel-source-rt - update to 5.14.21-150500.13.118.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.118.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.118.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt-extra - update to 5.14.21-150500.13.118.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt-livepatch - update to 5.14.21-150500.13.118.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.118.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.118.1
dlm-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt_debug - update to 5.14.21-150500.13.118.1
kernel-rt - update to 5.14.21-150500.13.118.1
kernel-devel-rt - update to 5.14.21-150500.13.118.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.118.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
gfs2-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.118.1
kernel-rt-debugsource - update to 5.14.21-150500.13.118.1
kernel-rt-devel - update to 5.14.21-150500.13.118.1
kselftests-kmp-rt - update to 5.14.21-150500.13.118.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.118.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.118.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.118.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
kernel-rt-optional - update to 5.14.21-150500.13.118.1
kernel-rt-vdso - update to 5.14.21-150500.13.118.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.118.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.118.1
kernel-syms-rt - update to 5.14.21-150500.13.118.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.118.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.118.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
dtb-amlogic - update to 5.14.21-150500.55.133.1
dlm-kmp-64kb - update to 5.14.21-150500.55.133.1
dtb-exynos - update to 5.14.21-150500.55.133.1
kernel-obs-qa - update to 5.14.21-150500.55.133.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
dtb-apple - update to 5.14.21-150500.55.133.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.133.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.133.1
kernel-64kb-extra - update to 5.14.21-150500.55.133.1
dtb-allwinner - update to 5.14.21-150500.55.133.1
dtb-freescale - update to 5.14.21-150500.55.133.1
dtb-lg - update to 5.14.21-150500.55.133.1
dtb-amazon - update to 5.14.21-150500.55.133.1
dtb-aarch64 - update to 5.14.21-150500.55.133.1
kernel-kvmsmall - update to 5.14.21-150500.55.133.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.133.1
kernel-default-vdso - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.133.1
dtb-xilinx - update to 5.14.21-150500.55.133.1
dtb-socionext - update to 5.14.21-150500.55.133.1
dtb-hisilicon - update to 5.14.21-150500.55.133.1
dtb-altera - update to 5.14.21-150500.55.133.1
dtb-cavium - update to 5.14.21-150500.55.133.1
kernel-64kb-optional - update to 5.14.21-150500.55.133.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.133.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
dtb-qcom - update to 5.14.21-150500.55.133.1
dtb-amd - update to 5.14.21-150500.55.133.1
dtb-mediatek - update to 5.14.21-150500.55.133.1
dtb-apm - update to 5.14.21-150500.55.133.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.133.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.133.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.133.1
dtb-sprd - update to 5.14.21-150500.55.133.1
dtb-broadcom - update to 5.14.21-150500.55.133.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.133.1
dtb-arm - update to 5.14.21-150500.55.133.1
dtb-nvidia - update to 5.14.21-150500.55.133.1
dtb-rockchip - update to 5.14.21-150500.55.133.1
dtb-renesas - update to 5.14.21-150500.55.133.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.133.1
dtb-marvell - update to 5.14.21-150500.55.133.1
kernel-default-devel - update to 5.14.21-150500.55.133.1
kernel-default-extra - update to 5.14.21-150500.55.133.1
kernel-64kb-devel - update to 5.14.21-150500.55.133.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.133.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.133.1
kernel-64kb - update to 5.14.21-150500.55.133.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
ocfs2-kmp-default - update to 5.14.21-150500.55.133.1
kernel-obs-build - update to 5.14.21-150500.55.133.1
cluster-md-kmp-default - update to 5.14.21-150500.55.133.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.133.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.133.1
dlm-kmp-default - update to 5.14.21-150500.55.133.1
kernel-syms - update to 5.14.21-150500.55.133.1
gfs2-kmp-default - update to 5.14.21-150500.55.133.1
kernel-default-devel-debuginfo - update to 5.14.21-150500.55.133.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
dlm-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
kernel-macros - update to 5.14.21-150500.55.133.1
kernel-default-debuginfo - update to 5.14.21-150500.55.133.1
kernel-default-debugsource - update to 5.14.21-150500.55.133.1
kernel-default - update to 5.14.21-150500.55.133.1
kernel-docs-html - update to 5.14.21-150500.55.133.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.133.1
kselftests-kmp-default - update to 5.14.21-150500.55.133.1
kernel-default-optional - update to 5.14.21-150500.55.133.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.133.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.133.1
kernel-source - update to 5.14.21-150500.55.133.1
kernel-source-vanilla - update to 5.14.21-150500.55.133.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.133.1
kernel-default-livepatch - update to 5.14.21-150500.55.133.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.133.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.133.1
kernel-zfcpdump - update to 5.14.21-150500.55.133.1
reiserfs-kmp-default - update to 5.14.21-150500.55.133.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.133.1
kernel-docs - update to 5.14.21-150500.55.133.1
kernel-devel - update to 5.14.21-150500.55.133.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.133.1.150500.6.65.1
kernel-default-base - update to 5.14.21-150500.55.133.1.150500.6.65.1

• https://git.kernel.org/stable/c/4e92cb33bfb51eee5f28bb10846c46f266a4bb67
• https://git.kernel.org/stable/c/a2907867e2c86067accd2f011d6f23ee5533aa6c
• https://git.kernel.org/stable/c/c070c1912a83432530cbb4271d5b9b11fa36b67a
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.19
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2

• Memory leak in Linux kernel vhost driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel