Memory leak in Linux kernel - CVE-2022-50351

Vulnerability identifier: #VU115670

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-2022-50351

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 cifs_create() function in fs/cifs/dir.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Manager Server 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
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 LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Manager Server
SUSE Manager Retail Branch 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_275-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-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-default-base-debuginfo
kernel-source
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-default-man
kernel-default
dlm-kmp-default-debuginfo
kernel-default-debugsource
kernel-default-devel
cluster-md-kmp-default-debuginfo
kernel-default-base
kernel-syms
gfs2-kmp-default
kernel-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-devel
kernel-macros
kernel-rt-debugsource
kernel-rt
kernel-rt-debuginfo
kernel-source-rt
kernel-kvmsmall
kernel-default-livepatch
reiserfs-kmp-default-debuginfo
kernel-default-optional
kernel-obs-qa
kernel-zfcpdump-debugsource
kernel-default-livepatch-devel
kernel-docs-html
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kselftests-kmp-default
kernel-docs
kernel-source-vanilla
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-default-extra-debuginfo
kselftests-kmp-default-debuginfo
reiserfs-kmp-default
kernel-default-extra
kernel-default-optional-debuginfo
kernel-obs-build-debugsource
kernel-obs-build
kernel-64kb-optional
dtb-renesas
dtb-amlogic
dtb-mediatek
dtb-nvidia
dtb-amazon
dlm-kmp-64kb-debuginfo
dtb-amd
kselftests-kmp-64kb
dtb-apple
cluster-md-kmp-64kb
dtb-qcom
dtb-sprd
dtb-xilinx
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-altera
dtb-aarch64
ocfs2-kmp-64kb
reiserfs-kmp-64kb
kernel-64kb-debuginfo
dtb-socionext
kernel-64kb-optional-debuginfo
kernel-64kb-extra-debuginfo
dtb-hisilicon
gfs2-kmp-64kb-debuginfo
dtb-cavium
dtb-broadcom
ocfs2-kmp-64kb-debuginfo
dtb-freescale
dtb-lg
dtb-apm
dtb-arm
kernel-64kb-debugsource
dtb-exynos
gfs2-kmp-64kb
kernel-64kb-extra
kselftests-kmp-64kb-debuginfo
kernel-default-base-rebuild
kselftests-kmp-rt-debuginfo
kernel-rt-extra
kernel-rt-vdso
kernel-rt_debug-devel
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-livepatch
kernel-syms-rt
kernel-rt_debug
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
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug-vdso
kernel-rt-devel-debuginfo
kernel-rt-optional-debuginfo
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
cluster-md-kmp-rt
kernel-rt-devel
kernel-rt-livepatch-devel
kernel-rt_debug-debuginfo
kernel-rt-optional
reiserfs-kmp-rt-debuginfo
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso

Install update from vendor's repository.

Linux kernel - addressed in versions 5.15.76, 6.0.6, 6.1
kgraft-patch-4_12_14-122_275-default - update to 1-8.3.1
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-5_14_21-150500_55_124-default - 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-SLE15-SP5_Update_31-debugsource - update to 1-150500.11.3.1
kernel-default-base-debuginfo - update to 4.12.14-122.275.1
kernel-source - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-kgraft - update to 4.12.14-122.275.1
kernel-default-kgraft-devel - update to 4.12.14-122.275.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-man - update to 4.12.14-122.275.1
kernel-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debugsource - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-devel - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-base - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1.150400.24.92.1, 5.14.21-150500.55.124.1.150500.6.59.1
kernel-syms - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-devel - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-macros - addressed in versions 4.12.14-122.275.1, 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
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
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-kvmsmall - 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
reiserfs-kmp-default-debuginfo - 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-qa - 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
kernel-default-livepatch-devel - 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-zfcpdump-debuginfo - 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
kselftests-kmp-default - 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-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-kvmsmall-devel - 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
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-debuginfo - 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-64kb-optional - 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
dtb-mediatek - 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
dtb-sprd - 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
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-altera - 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
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-64kb - 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
dtb-socionext - 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-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
dtb-arm - 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
kselftests-kmp-64kb-debuginfo - 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
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-extra - update to 5.14.21-150500.13.109.1
kernel-rt-vdso - 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 - 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
gfs2-kmp-rt - update to 5.14.21-150500.13.109.1
gfs2-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
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt-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-vdso-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-devel - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt-debuginfo - 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

• https://git.kernel.org/stable/c/593d877c39aa9f3fe1a4b5b022492886d7d700ec
• https://git.kernel.org/stable/c/92aa09c86ef297976a3c27c6574c0839418dc2c4
• https://git.kernel.org/stable/c/fee0fb1f15054bb6a0ede452acb42da5bef4d587
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.76
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.6
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1

• Memory leak in Linux kernel cifs
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel