Memory leak in Linux kernel - CVE-2022-48809

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Main Vulnerability Database Vulnerabilities #VU94405

Memory leak in Linux kernel - CVE-2022-48809

Published: July 17, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU94405
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-2022-48809
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 include/net/dst_metadata.h. 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 12 SP5
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
openSUSE Leap Micro
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
Development Tools Module
SUSE Real Time Module
Basesystem Module
Legacy Module
Public Cloud Module
openSUSE Leap
kgraft-patch-4_12_14-122_234-default
kernel-livepatch-SLE15-SP5_Update_17-debugsource
kernel-livepatch-5_14_21-150500_55_73-default
kernel-livepatch-5_14_21-150500_55_73-default-debuginfo
kernel-livepatch-SLE15-SP5-RT_Update_18-debugsource
kernel-livepatch-5_14_21-150500_13_64-rt
kernel-livepatch-5_14_21-150500_13_64-rt-debuginfo
kernel-default-debugsource
kernel-default-devel
kernel-default-debuginfo
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
kernel-macros
kernel-default-base
gfs2-kmp-default-debuginfo
kernel-default-devel-debuginfo
kernel-default-man
kernel-source
kernel-devel
kernel-default
gfs2-kmp-default
dlm-kmp-default-debuginfo
ocfs2-kmp-default
kernel-syms
kernel-default-base-debuginfo
cluster-md-kmp-default
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-devel-rt
kernel-source-rt
kernel-rt-optional-debuginfo
cluster-md-kmp-rt
kernel-rt_debug-debugsource
kernel-rt_debug-devel-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt-devel
kernel-rt-devel-debuginfo
reiserfs-kmp-rt
kernel-rt_debug
kernel-rt_debug-debuginfo
gfs2-kmp-rt
ocfs2-kmp-rt
kernel-rt_debug-devel
kernel-rt
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-livepatch
kernel-rt_debug-vdso
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt-vdso
kernel-rt_debug-livepatch-devel
kernel-rt-extra
kernel-syms-rt
kernel-rt-vdso-debuginfo
kernel-rt-livepatch-devel
dlm-kmp-rt-debuginfo
kernel-rt-debugsource
kernel-rt-optional
dlm-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
reiserfs-kmp-rt-debuginfo
kselftests-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
kernel-syms-azure
dlm-kmp-azure-debuginfo
dlm-kmp-azure
reiserfs-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-devel
ocfs2-kmp-azure
kernel-azure-optional-debuginfo
gfs2-kmp-azure
ocfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
kselftests-kmp-azure
kernel-devel-azure
kernel-source-azure
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-azure
kernel-azure-devel-debuginfo
kernel-azure-livepatch-devel
gfs2-kmp-azure-debuginfo
kernel-azure-debugsource
kernel-azure-debuginfo
kernel-azure-extra
kernel-azure-optional
dtb-broadcom
dtb-qcom
kernel-64kb-optional
kselftests-kmp-64kb-debuginfo
dtb-amazon
dtb-sprd
dtb-hisilicon
dtb-marvell
gfs2-kmp-64kb-debuginfo
kernel-64kb-devel-debuginfo
dlm-kmp-64kb-debuginfo
dtb-exynos
dtb-freescale
ocfs2-kmp-64kb-debuginfo
kernel-64kb
kernel-64kb-debugsource
kernel-kvmsmall-devel-debuginfo
kselftests-kmp-default
kernel-default-livepatch-devel
kselftests-kmp-default-debuginfo
kernel-default-optional
kernel-kvmsmall-debuginfo
kernel-obs-qa
kernel-default-optional-debuginfo
kernel-default-extra
kernel-debug-devel-debuginfo
kernel-source-vanilla
kernel-debug
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel
dtb-mediatek
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-kvmsmall-livepatch-devel
cluster-md-kmp-64kb-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-devel
kselftests-kmp-64kb
kernel-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
dlm-kmp-64kb
dtb-renesas
dtb-rockchip
ocfs2-kmp-64kb
reiserfs-kmp-64kb
kernel-default-extra-debuginfo
dtb-nvidia
dtb-socionext
dtb-cavium
dtb-apple
dtb-amd
dtb-apm
dtb-amlogic
dtb-arm
dtb-altera
dtb-aarch64
reiserfs-kmp-default
kernel-obs-build
kernel-default-livepatch
kernel-obs-build-debugsource
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-xilinx
dtb-lg
cluster-md-kmp-64kb
gfs2-kmp-64kb
reiserfs-kmp-default-debuginfo
kernel-64kb-optional-debuginfo
dtb-allwinner
kernel-64kb-extra
kernel-64kb-extra-debuginfo
kernel-default-base-rebuild
kernel-docs-html
kernel-docs
Dell Secure Connect Gateway

How to mitigate CVE-2022-48809

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.302, 4.14.267, 4.19.230, 5.4.180, 5.10.101, 5.15.24, 5.16.10, 5.17
kgraft-patch-4_12_14-122_234-default - update to 1-8.3.1
kernel-livepatch-SLE15-SP5_Update_17-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_73-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_73-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5-RT_Update_18-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_64-rt - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_13_64-rt-debuginfo - update to 1-150500.11.3.1
kernel-default-debugsource - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
dlm-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-macros - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-base - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1.150500.6.33.8
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-man - update to 4.12.14-122.234.1
kernel-source - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
gfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-syms - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-base-debuginfo - update to 4.12.14-122.234.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.73.1
kernel-default-kgraft - update to 4.12.14-122.234.1
kernel-default-kgraft-devel - update to 4.12.14-122.234.1
kernel-devel-rt - update to 5.14.21-150500.13.64.1
kernel-source-rt - update to 5.14.21-150500.13.64.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.64.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.64.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.64.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.64.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-devel - update to 5.14.21-150500.13.64.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.64.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.64.1
kernel-rt_debug - update to 5.14.21-150500.13.64.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.64.1
gfs2-kmp-rt - update to 5.14.21-150500.13.64.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.64.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.64.1
kernel-rt - update to 5.14.21-150500.13.64.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-livepatch - update to 5.14.21-150500.13.64.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.64.1
kselftests-kmp-rt - update to 5.14.21-150500.13.64.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-vdso - update to 5.14.21-150500.13.64.1
kernel-rt_debug-livepatch-devel - update to 5.14.21-150500.13.64.1
kernel-rt-extra - update to 5.14.21-150500.13.64.1
kernel-syms-rt - update to 5.14.21-150500.13.64.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.64.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt-debugsource - update to 5.14.21-150500.13.64.1
kernel-rt-optional - update to 5.14.21-150500.13.64.1
dlm-kmp-rt - update to 5.14.21-150500.13.64.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.64.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.64.1
kselftests-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure-extra-debuginfo - update to 5.14.21-150500.33.63.1
kernel-syms-azure - update to 5.14.21-150500.33.63.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
dlm-kmp-azure - update to 5.14.21-150500.33.63.1
reiserfs-kmp-azure - update to 5.14.21-150500.33.63.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure-devel - update to 5.14.21-150500.33.63.1
ocfs2-kmp-azure - update to 5.14.21-150500.33.63.1
kernel-azure-optional-debuginfo - update to 5.14.21-150500.33.63.1
gfs2-kmp-azure - update to 5.14.21-150500.33.63.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
cluster-md-kmp-azure - update to 5.14.21-150500.33.63.1
kselftests-kmp-azure - update to 5.14.21-150500.33.63.1
kernel-devel-azure - update to 5.14.21-150500.33.63.1
kernel-source-azure - update to 5.14.21-150500.33.63.1
kernel-azure-vdso - update to 5.14.21-150500.33.63.1
kernel-azure-vdso-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure - update to 5.14.21-150500.33.63.1
kernel-azure-devel-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure-livepatch-devel - update to 5.14.21-150500.33.63.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure-debugsource - update to 5.14.21-150500.33.63.1
kernel-azure-debuginfo - update to 5.14.21-150500.33.63.1
kernel-azure-extra - update to 5.14.21-150500.33.63.1
kernel-azure-optional - update to 5.14.21-150500.33.63.1
dtb-broadcom - update to 5.14.21-150500.55.73.1
dtb-qcom - update to 5.14.21-150500.55.73.1
kernel-64kb-optional - update to 5.14.21-150500.55.73.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
dtb-amazon - update to 5.14.21-150500.55.73.1
dtb-sprd - update to 5.14.21-150500.55.73.1
dtb-hisilicon - update to 5.14.21-150500.55.73.1
dtb-marvell - update to 5.14.21-150500.55.73.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.73.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
dtb-exynos - update to 5.14.21-150500.55.73.1
dtb-freescale - update to 5.14.21-150500.55.73.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
kernel-64kb - update to 5.14.21-150500.55.73.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.73.1
kselftests-kmp-default - update to 5.14.21-150500.55.73.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.73.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.73.1
kernel-default-optional - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.73.1
kernel-obs-qa - update to 5.14.21-150500.55.73.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.73.1
kernel-default-extra - update to 5.14.21-150500.55.73.1
kernel-debug-devel-debuginfo - update to 5.14.21-150500.55.73.1
kernel-source-vanilla - update to 5.14.21-150500.55.73.1
kernel-debug - update to 5.14.21-150500.55.73.1
kernel-debug-livepatch-devel - update to 5.14.21-150500.55.73.1
kernel-debug-debuginfo - update to 5.14.21-150500.55.73.1
kernel-debug-debugsource - update to 5.14.21-150500.55.73.1
kernel-debug-devel - update to 5.14.21-150500.55.73.1
dtb-mediatek - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.73.1
kernel-default-vdso - update to 5.14.21-150500.55.73.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.73.1
kernel-debug-vdso - update to 5.14.21-150500.55.73.1
kernel-debug-vdso-debuginfo - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.73.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150500.55.73.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
kernel-64kb-livepatch-devel - update to 5.14.21-150500.55.73.1
kernel-64kb-devel - update to 5.14.21-150500.55.73.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.73.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.73.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.73.1
dlm-kmp-64kb - update to 5.14.21-150500.55.73.1
dtb-renesas - update to 5.14.21-150500.55.73.1
dtb-rockchip - update to 5.14.21-150500.55.73.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.73.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.73.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.73.1
dtb-nvidia - update to 5.14.21-150500.55.73.1
dtb-socionext - update to 5.14.21-150500.55.73.1
dtb-cavium - update to 5.14.21-150500.55.73.1
dtb-apple - update to 5.14.21-150500.55.73.1
dtb-amd - update to 5.14.21-150500.55.73.1
dtb-apm - update to 5.14.21-150500.55.73.1
dtb-amlogic - update to 5.14.21-150500.55.73.1
dtb-arm - update to 5.14.21-150500.55.73.1
dtb-altera - update to 5.14.21-150500.55.73.1
dtb-aarch64 - update to 5.14.21-150500.55.73.1
reiserfs-kmp-default - update to 5.14.21-150500.55.73.1
kernel-obs-build - update to 5.14.21-150500.55.73.1
kernel-default-livepatch - update to 5.14.21-150500.55.73.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.73.1
kernel-kvmsmall - update to 5.14.21-150500.55.73.1
kernel-zfcpdump - update to 5.14.21-150500.55.73.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.73.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.73.1
dtb-xilinx - update to 5.14.21-150500.55.73.1
dtb-lg - update to 5.14.21-150500.55.73.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.73.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.73.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.73.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.73.1
dtb-allwinner - update to 5.14.21-150500.55.73.1
kernel-64kb-extra - update to 5.14.21-150500.55.73.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.73.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.73.1.150500.6.33.8
kernel-docs-html - update to 5.14.21-150500.55.73.2
kernel-docs - update to 5.14.21-150500.55.73.2
Dell Secure Connect Gateway - update to 5.28.00.14

External References

Related Security Bulletins