Improper locking in Linux kernel - CVE-2022-49767

Vulnerability identifier: #VU108314

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-2022-49767

CWE-ID: CWE-667

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 improper locking within the p9_fd_open() function in net/9p/trans_fd.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 15 SP3
SUSE Enterprise Server 15 SP3 Business Critical
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 LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
SUSE Linux Enterprise Live Patching
openSUSE Leap
kernel-livepatch-SLE15-SP3_Update_58-debugsource
kernel-livepatch-5_3_18-150300_59_207-preempt
kernel-livepatch-5_3_18-150300_59_207-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_207-default
kernel-livepatch-5_3_18-150300_59_207-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_41-debugsource
kernel-livepatch-5_14_21-150400_24_167-default
kernel-livepatch-5_14_21-150400_24_167-default-debuginfo
reiserfs-kmp-64kb
kernel-64kb-optional-debuginfo
kernel-64kb-extra
gfs2-kmp-preempt-debuginfo
dtb-allwinner
kernel-64kb-devel-debuginfo
kernel-64kb-optional
dtb-mediatek
kselftests-kmp-64kb
dtb-renesas
ocfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb
dtb-xilinx
dtb-freescale
dtb-amlogic
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-preempt
kernel-preempt-debugsource
ocfs2-kmp-preempt-debuginfo
cluster-md-kmp-preempt-debuginfo
cluster-md-kmp-preempt
kernel-preempt-debuginfo
dtb-rockchip
kernel-64kb
dtb-al
kselftests-kmp-64kb-debuginfo
kernel-64kb-debuginfo
dtb-sprd
dtb-marvell
dtb-lg
dtb-hisilicon
kernel-64kb-debugsource
kernel-64kb-devel
reiserfs-kmp-64kb-debuginfo
dtb-socionext
dlm-kmp-64kb
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
dtb-qcom
dtb-apm
dtb-altera
dtb-cavium
dtb-arm
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
dtb-zte
kernel-64kb-extra-debuginfo
dtb-amd
dtb-exynos
dtb-nvidia
gfs2-kmp-64kb
dtb-broadcom
kernel-obs-build-debugsource
kernel-default-debuginfo
kernel-default-optional-debuginfo
kernel-default-debugsource
kernel-obs-qa
kernel-default-extra-debuginfo
kernel-default-optional
kselftests-kmp-default-debuginfo
reiserfs-kmp-default
ocfs2-kmp-default-debuginfo
cluster-md-kmp-default
kernel-obs-build
reiserfs-kmp-default-debuginfo
dlm-kmp-default
kernel-preempt-extra
dlm-kmp-default-debuginfo
kselftests-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-extra
kernel-syms
kernel-docs-html
kernel-macros
kernel-devel
kernel-source-vanilla
kernel-source
kernel-docs
gfs2-kmp-default
gfs2-kmp-preempt
reiserfs-kmp-preempt
kernel-preempt-devel-debuginfo
dlm-kmp-preempt
kernel-preempt-optional-debuginfo
kernel-preempt-extra-debuginfo
kernel-preempt-devel
dlm-kmp-preempt-debuginfo
kselftests-kmp-preempt
ocfs2-kmp-preempt
reiserfs-kmp-preempt-debuginfo
kernel-preempt-optional
kernel-kvmsmall-devel-debuginfo
kernel-default-livepatch
kernel-default-devel-debuginfo
kernel-default-devel
cluster-md-kmp-default-debuginfo
kernel-default
kernel-default-livepatch-devel
kernel-kvmsmall
kernel-kvmsmall-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kselftests-kmp-preempt-debuginfo
kernel-default-base
kernel-default-base-rebuild
kernel-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-source-rt

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.334, 4.14.300, 4.19.267, 5.4.225, 5.10.156, 5.15.80, 6.0.10, 6.1
kernel-livepatch-SLE15-SP3_Update_58-debugsource - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_207-preempt - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_207-preempt-debuginfo - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_207-default - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_207-default-debuginfo - update to 1-150300.7.3.1
kernel-livepatch-SLE15-SP4_Update_41-debugsource - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_167-default - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_167-default-debuginfo - update to 1-150400.9.3.1
reiserfs-kmp-64kb - update to 5.3.18-150300.59.207.1
kernel-64kb-optional-debuginfo - update to 5.3.18-150300.59.207.1
kernel-64kb-extra - update to 5.3.18-150300.59.207.1
gfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
dtb-allwinner - update to 5.3.18-150300.59.207.1
kernel-64kb-devel-debuginfo - update to 5.3.18-150300.59.207.1
kernel-64kb-optional - update to 5.3.18-150300.59.207.1
dtb-mediatek - update to 5.3.18-150300.59.207.1
kselftests-kmp-64kb - update to 5.3.18-150300.59.207.1
dtb-renesas - update to 5.3.18-150300.59.207.1
ocfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
ocfs2-kmp-64kb - update to 5.3.18-150300.59.207.1
dtb-xilinx - update to 5.3.18-150300.59.207.1
dtb-freescale - update to 5.3.18-150300.59.207.1
dtb-amlogic - update to 5.3.18-150300.59.207.1
dtb-aarch64 - update to 5.3.18-150300.59.207.1
kernel-zfcpdump-debugsource - update to 5.3.18-150300.59.207.1
kernel-zfcpdump-debuginfo - update to 5.3.18-150300.59.207.1
kernel-zfcpdump - update to 5.3.18-150300.59.207.1
kernel-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-debugsource - update to 5.3.18-150300.59.207.1
ocfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
cluster-md-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
cluster-md-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-debuginfo - update to 5.3.18-150300.59.207.1
dtb-rockchip - update to 5.3.18-150300.59.207.1
kernel-64kb - update to 5.3.18-150300.59.207.1
dtb-al - update to 5.3.18-150300.59.207.1
kselftests-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
kernel-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dtb-sprd - update to 5.3.18-150300.59.207.1
dtb-marvell - update to 5.3.18-150300.59.207.1
dtb-lg - update to 5.3.18-150300.59.207.1
dtb-hisilicon - update to 5.3.18-150300.59.207.1
kernel-64kb-debugsource - update to 5.3.18-150300.59.207.1
kernel-64kb-devel - update to 5.3.18-150300.59.207.1
reiserfs-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dtb-socionext - update to 5.3.18-150300.59.207.1
dlm-kmp-64kb - update to 5.3.18-150300.59.207.1
gfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dlm-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dtb-qcom - update to 5.3.18-150300.59.207.1
dtb-apm - update to 5.3.18-150300.59.207.1
dtb-altera - update to 5.3.18-150300.59.207.1
dtb-cavium - update to 5.3.18-150300.59.207.1
dtb-arm - update to 5.3.18-150300.59.207.1
cluster-md-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
cluster-md-kmp-64kb - update to 5.3.18-150300.59.207.1
dtb-zte - update to 5.3.18-150300.59.207.1
kernel-64kb-extra-debuginfo - update to 5.3.18-150300.59.207.1
dtb-amd - update to 5.3.18-150300.59.207.1
dtb-exynos - update to 5.3.18-150300.59.207.1
dtb-nvidia - update to 5.3.18-150300.59.207.1
gfs2-kmp-64kb - update to 5.3.18-150300.59.207.1
dtb-broadcom - update to 5.3.18-150300.59.207.1
kernel-obs-build-debugsource - update to 5.3.18-150300.59.207.1
kernel-default-debuginfo - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1
kernel-default-optional-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-debugsource - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1
kernel-obs-qa - update to 5.3.18-150300.59.207.1
kernel-default-extra-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-optional - update to 5.3.18-150300.59.207.1
kselftests-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
reiserfs-kmp-default - update to 5.3.18-150300.59.207.1
ocfs2-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
cluster-md-kmp-default - update to 5.3.18-150300.59.207.1
kernel-obs-build - update to 5.3.18-150300.59.207.1
reiserfs-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
dlm-kmp-default - update to 5.3.18-150300.59.207.1
kernel-preempt-extra - update to 5.3.18-150300.59.207.1
dlm-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
kselftests-kmp-default - update to 5.3.18-150300.59.207.1
gfs2-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
ocfs2-kmp-default - update to 5.3.18-150300.59.207.1
kernel-default-extra - update to 5.3.18-150300.59.207.1
kernel-syms - update to 5.3.18-150300.59.207.1
kernel-docs-html - update to 5.3.18-150300.59.207.1
kernel-macros - update to 5.3.18-150300.59.207.1
kernel-devel - update to 5.3.18-150300.59.207.1
kernel-source-vanilla - update to 5.3.18-150300.59.207.1
kernel-source - update to 5.3.18-150300.59.207.1
kernel-docs - update to 5.3.18-150300.59.207.1
gfs2-kmp-default - update to 5.3.18-150300.59.207.1
gfs2-kmp-preempt - update to 5.3.18-150300.59.207.1
reiserfs-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-devel-debuginfo - update to 5.3.18-150300.59.207.1
dlm-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-optional-debuginfo - update to 5.3.18-150300.59.207.1
kernel-preempt-extra-debuginfo - update to 5.3.18-150300.59.207.1
kernel-preempt-devel - update to 5.3.18-150300.59.207.1
dlm-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
kselftests-kmp-preempt - update to 5.3.18-150300.59.207.1
ocfs2-kmp-preempt - update to 5.3.18-150300.59.207.1
reiserfs-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
kernel-preempt-optional - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-devel-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-livepatch - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1
kernel-default-devel-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-devel - update to 5.3.18-150300.59.207.1
cluster-md-kmp-default-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1
kernel-default-livepatch-devel - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1
kernel-kvmsmall - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-devel - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-debugsource - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-debuginfo - update to 5.3.18-150300.59.207.1
kselftests-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-base - update to 5.3.18-150300.59.207.1.150300.18.124.1
kernel-default-base-rebuild - update to 5.3.18-150300.59.207.1.150300.18.124.1
kernel-rt - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1
kernel-rt-debugsource - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1
kernel-rt-debuginfo - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1
kernel-source-rt - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1

• https://git.kernel.org/stable/c/0b5e6bd72b8171364616841603a70e4ba9837063
• https://git.kernel.org/stable/c/0e07032b4b4724b8ad1003698cb81083c1818999
• https://git.kernel.org/stable/c/5af16182c5639349415118e9e9aecd8355f7a08b
• https://git.kernel.org/stable/c/7abf40f06a76c0dff42eada10597917e9776fbd4
• https://git.kernel.org/stable/c/9f8554615df668e4bf83294633ee9d232b28ce45
• https://git.kernel.org/stable/c/a8e2fc8f7b41fa9d9ca5f624f4e4d34fce5b40a9
• https://git.kernel.org/stable/c/b1ad04da7fe4515e2ce2d5f2dcab3b5b6d45614b
• https://git.kernel.org/stable/c/ef575281b21e9a34dfae544a187c6aac2ae424a9
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.300
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.267
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.334
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.156
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.80
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.225
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.10
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1

• Improper locking in Linux kernel 9p
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel