Improper locking in Linux kernel - CVE-2022-49027

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Main Vulnerability Database Vulnerabilities #VU99007

Improper locking in Linux kernel - CVE-2022-49027

Published: October 22, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU99007
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-2022-49027
CWE-ID: CWE-667
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 improper locking within the iavf_init_module() function in drivers/net/ethernet/intel/iavf/iavf_main.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 Desktop 15 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 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 Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
Legacy Module
Development Tools Module
Basesystem Module
openSUSE Leap
kgraft-patch-4_12_14-122_234-default
kernel-livepatch-SLE15-SP4_Update_33-debugsource
kernel-livepatch-5_14_21-150400_24_141-default
kernel-livepatch-5_14_21-150400_24_141-default-debuginfo
kernel-livepatch-SLE15-SP5-RT_Update_22-debugsource
kernel-livepatch-5_14_21-150500_13_76-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_76-rt
kernel-livepatch-5_14_21-150500_55_88-default-debuginfo
kernel-livepatch-5_14_21-150500_55_88-default
kernel-livepatch-SLE15-SP5_Update_21-debugsource
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-default-debugsource
ocfs2-kmp-default-debuginfo
cluster-md-kmp-default
kernel-default-devel-debuginfo
dlm-kmp-default
cluster-md-kmp-default-debuginfo
kernel-default-debuginfo
ocfs2-kmp-default
kernel-default
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-base-debuginfo
kernel-default-devel
kernel-syms
kernel-default-base
kernel-devel
kernel-macros
kernel-source
kernel-default-man
gfs2-kmp-default
kernel-source-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt
dtb-apm
cluster-md-kmp-64kb-debuginfo
dtb-hisilicon
kselftests-kmp-64kb
kernel-64kb-devel-debuginfo
dtb-cavium
reiserfs-kmp-64kb
dtb-exynos
dtb-nvidia
dtb-freescale
kernel-64kb-optional
kernel-64kb-livepatch-devel
kernel-64kb-extra-debuginfo
dtb-rockchip
dtb-broadcom
kselftests-kmp-64kb-debuginfo
dtb-amlogic
dtb-allwinner
dtb-arm
kernel-64kb-debuginfo
dtb-mediatek
dtb-aarch64
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-xilinx
reiserfs-kmp-64kb-debuginfo
kernel-64kb
dtb-apple
dtb-lg
gfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb
dtb-renesas
kernel-64kb-optional-debuginfo
cluster-md-kmp-64kb
dtb-amazon
dlm-kmp-64kb-debuginfo
kernel-64kb-debugsource
dtb-socionext
dtb-marvell
dtb-amd
kernel-64kb-devel
dtb-qcom
kernel-64kb-extra
dlm-kmp-64kb
ocfs2-kmp-64kb-debuginfo
dtb-sprd
dtb-altera
ocfs2-kmp-64kb
kernel-kvmsmall-devel-debuginfo
kernel-obs-build-debugsource
kernel-obs-build
kernel-kvmsmall-devel
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-debugsource
kernel-docs
kernel-kvmsmall-debuginfo
kernel-docs-html
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug-livepatch-devel
kernel-debug-devel-debuginfo
kernel-debug
kernel-source-vanilla
kernel-kvmsmall
kselftests-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-extra-debuginfo
kernel-default-optional-debuginfo
kernel-default-optional
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default-extra
kernel-obs-qa
reiserfs-kmp-default
kernel-zfcpdump
kselftests-kmp-default
kernel-default-base-rebuild
kernel-rt_debug-livepatch-devel
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-devel-rt
kernel-rt-livepatch
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt-optional
kernel-rt-livepatch-devel
kernel-rt-extra
kernel-rt-optional-debuginfo
kernel-rt-extra-debuginfo
kselftests-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt_debug
kernel-rt-devel
kernel-rt_debug-debugsource
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt_debug-devel
kernel-rt_debug-vdso
dlm-kmp-rt
ocfs2-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-vdso-debuginfo
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-vdso
cluster-md-kmp-rt
kernel-syms-rt
kernel-rt-vdso-debuginfo
kernel-azure-debuginfo
kselftests-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
dlm-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-optional
kernel-azure-devel
kernel-azure-debugsource
gfs2-kmp-azure
kernel-azure
kernel-azure-vdso-debuginfo
cluster-md-kmp-azure
gfs2-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
dlm-kmp-azure-debuginfo
ocfs2-kmp-azure
reiserfs-kmp-azure
kernel-syms-azure
kernel-azure-livepatch-devel
kselftests-kmp-azure
kernel-azure-optional-debuginfo
ocfs2-kmp-azure-debuginfo
kernel-azure-extra
kernel-source-azure
kernel-devel-azure
kernel-azure-vdso
cluster-md-kmp-azure-debuginfo

How to mitigate CVE-2022-49027

Install update from vendor's website.

Linux kernel - addressed in versions 5.10.158, 5.15.82, 6.0.12, 6.1
kgraft-patch-4_12_14-122_234-default - update to 1-8.3.1
kernel-livepatch-SLE15-SP4_Update_33-debugsource - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150400_24_141-default - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150400_24_141-default-debuginfo - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP5-RT_Update_22-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_76-rt-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_76-rt - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_88-default-debuginfo - update to 1-150500.11.5.1
kernel-livepatch-5_14_21-150500_55_88-default - update to 1-150500.11.5.1
kernel-livepatch-SLE15-SP5_Update_21-debugsource - update to 1-150500.11.5.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-debugsource - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dlm-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-kgraft - update to 4.12.14-122.234.1
kernel-default-kgraft-devel - update to 4.12.14-122.234.1
kernel-default-base-debuginfo - update to 4.12.14-122.234.1
kernel-default-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-syms - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-base - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1.150400.24.68.2, 5.14.21-150500.55.88.1.150500.6.39.4
kernel-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-macros - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-source - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-man - update to 4.12.14-122.234.1
gfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
kernel-rt - addressed in versions 5.14.21-150400.15.100.1, 5.14.21-150500.13.76.1
dtb-apm - update to 5.14.21-150400.24.141.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-hisilicon - update to 5.14.21-150400.24.141.1
kselftests-kmp-64kb - update to 5.14.21-150400.24.141.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-cavium - update to 5.14.21-150400.24.141.1
reiserfs-kmp-64kb - update to 5.14.21-150400.24.141.1
dtb-exynos - update to 5.14.21-150400.24.141.1
dtb-nvidia - update to 5.14.21-150400.24.141.1
dtb-freescale - update to 5.14.21-150400.24.141.1
kernel-64kb-optional - update to 5.14.21-150400.24.141.1
kernel-64kb-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.141.1
dtb-rockchip - update to 5.14.21-150400.24.141.1
dtb-broadcom - update to 5.14.21-150400.24.141.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-amlogic - update to 5.14.21-150400.24.141.1
dtb-allwinner - update to 5.14.21-150400.24.141.1
dtb-arm - update to 5.14.21-150400.24.141.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-mediatek - update to 5.14.21-150400.24.141.1
dtb-aarch64 - update to 5.14.21-150400.24.141.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-xilinx - update to 5.14.21-150400.24.141.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
kernel-64kb - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-apple - update to 5.14.21-150400.24.141.1
dtb-lg - update to 5.14.21-150400.24.141.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
gfs2-kmp-64kb - update to 5.14.21-150400.24.141.1
dtb-renesas - update to 5.14.21-150400.24.141.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.141.1
cluster-md-kmp-64kb - update to 5.14.21-150400.24.141.1
dtb-amazon - update to 5.14.21-150400.24.141.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-socionext - update to 5.14.21-150400.24.141.1
dtb-marvell - update to 5.14.21-150400.24.141.1
dtb-amd - update to 5.14.21-150400.24.141.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
dtb-qcom - update to 5.14.21-150400.24.141.1
kernel-64kb-extra - update to 5.14.21-150400.24.141.1
dlm-kmp-64kb - update to 5.14.21-150400.24.141.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.141.1
dtb-sprd - update to 5.14.21-150400.24.141.1
dtb-altera - update to 5.14.21-150400.24.141.1
ocfs2-kmp-64kb - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.141.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-kvmsmall-devel - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.141.1
kernel-docs - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.141.1
kernel-docs-html - update to 5.14.21-150400.24.141.1
kernel-debug-debugsource - update to 5.14.21-150400.24.141.1
kernel-debug-debuginfo - update to 5.14.21-150400.24.141.1
kernel-debug-devel - update to 5.14.21-150400.24.141.1
kernel-debug-livepatch-devel - update to 5.14.21-150400.24.141.1
kernel-debug-devel-debuginfo - update to 5.14.21-150400.24.141.1
kernel-debug - update to 5.14.21-150400.24.141.1
kernel-source-vanilla - update to 5.14.21-150400.24.141.1
kernel-kvmsmall - update to 5.14.21-150400.24.141.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.141.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.141.1
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.141.1
kernel-default-optional - update to 5.14.21-150400.24.141.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-default-extra - update to 5.14.21-150400.24.141.1
kernel-obs-qa - update to 5.14.21-150400.24.141.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.141.1, 5.14.21-150500.55.88.1
kselftests-kmp-default - update to 5.14.21-150400.24.141.1
kernel-default-base-rebuild - update to 5.14.21-150400.24.141.1.150400.24.68.2
kernel-rt_debug-livepatch-devel - update to 5.14.21-150500.13.76.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.76.1
gfs2-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-devel-rt - update to 5.14.21-150500.13.76.1
kernel-rt-livepatch - update to 5.14.21-150500.13.76.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.76.1
kselftests-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt-optional - update to 5.14.21-150500.13.76.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.76.1
kernel-rt-extra - update to 5.14.21-150500.13.76.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.76.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug - update to 5.14.21-150500.13.76.1
kernel-rt-devel - update to 5.14.21-150500.13.76.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.76.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.76.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.76.1
dlm-kmp-rt - update to 5.14.21-150500.13.76.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.76.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt-vdso - update to 5.14.21-150500.13.76.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.76.1
kernel-syms-rt - update to 5.14.21-150500.13.76.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.76.1
kernel-azure-debuginfo - update to 5.14.21-150500.33.72.1
kselftests-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-extra-debuginfo - update to 5.14.21-150500.33.72.1
dlm-kmp-azure - update to 5.14.21-150500.33.72.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-optional - update to 5.14.21-150500.33.72.1
kernel-azure-devel - update to 5.14.21-150500.33.72.1
kernel-azure-debugsource - update to 5.14.21-150500.33.72.1
gfs2-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-azure - update to 5.14.21-150500.33.72.1
kernel-azure-vdso-debuginfo - update to 5.14.21-150500.33.72.1
cluster-md-kmp-azure - update to 5.14.21-150500.33.72.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-devel-debuginfo - update to 5.14.21-150500.33.72.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
ocfs2-kmp-azure - update to 5.14.21-150500.33.72.1
reiserfs-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-syms-azure - update to 5.14.21-150500.33.72.1
kernel-azure-livepatch-devel - update to 5.14.21-150500.33.72.1
kselftests-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-azure-optional-debuginfo - update to 5.14.21-150500.33.72.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
kernel-azure-extra - update to 5.14.21-150500.33.72.1
kernel-source-azure - update to 5.14.21-150500.33.72.1
kernel-devel-azure - update to 5.14.21-150500.33.72.1
kernel-azure-vdso - update to 5.14.21-150500.33.72.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1

External References

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