Memory leak in Linux kernel - CVE-2022-49381

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Main Vulnerability Database Vulnerabilities #VU104263

Memory leak in Linux kernel - CVE-2022-49381

Published: February 26, 2025 / Updated: May 11, 2025


Vulnerability identifier: #VU104263
CSH Severity: Low
CVSS v4 BT: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-49381
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 jffs2_free_raw_node_refs() function in fs/jffs2/fs.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Availability Extension 15
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 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
openEuler
kernel-livepatch-SLE15-SP4_Update_38-debugsource
kernel-livepatch-5_14_21-150400_24_158-default
kernel-livepatch-5_14_21-150400_24_158-default-debuginfo
kernel-livepatch-5_14_21-150500_55_100-default-debuginfo
kernel-livepatch-5_14_21-150500_55_100-default
kernel-livepatch-SLE15-SP5_Update_25-debugsource
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-rt-debuginfo
kernel-rt-debugsource
kernel-source-rt
kernel-rt
dtb-arm
dtb-broadcom
kselftests-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
dtb-renesas
kernel-64kb-debugsource
dtb-mediatek
dlm-kmp-64kb
kselftests-kmp-64kb
dtb-marvell
dtb-nvidia
ocfs2-kmp-64kb-debuginfo
dtb-cavium
kernel-64kb-devel
kernel-64kb-extra-debuginfo
dtb-socionext
kernel-64kb
dtb-amazon
dtb-amlogic
dtb-hisilicon
kernel-64kb-debuginfo
dtb-freescale
dtb-allwinner
cluster-md-kmp-64kb
cluster-md-kmp-64kb-debuginfo
dtb-qcom
ocfs2-kmp-64kb
dtb-amd
kernel-64kb-optional-debuginfo
dtb-altera
kernel-64kb-devel-debuginfo
dtb-sprd
dtb-xilinx
dtb-exynos
kernel-source-vanilla
kernel-default-optional-debuginfo
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-optional
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-debug-devel
kernel-debug-debuginfo
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-debug
kernel-docs-html
kernel-obs-build
kernel-docs
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump
kernel-macros
kernel-syms
kernel-default-debugsource
kernel-default-devel
kernel-default-debuginfo
kernel-default-devel-debuginfo
kernel-default
kernel-obs-build-debugsource
gfs2-kmp-64kb
dtb-rockchip
dtb-apple
dtb-apm
dlm-kmp-64kb-debuginfo
reiserfs-kmp-64kb
kernel-64kb-extra
dtb-lg
dtb-aarch64
kernel-kvmsmall
kernel-default-livepatch-devel
cluster-md-kmp-default
kernel-64kb-optional
kernel-default-extra
kernel-default-livepatch
dlm-kmp-default
reiserfs-kmp-default-debuginfo
gfs2-kmp-default
kselftests-kmp-default
reiserfs-kmp-default
kernel-obs-qa
cluster-md-kmp-default-debuginfo
kernel-default-extra-debuginfo
kselftests-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-default-base
kernel-default-base-rebuild
kernel-rt_debug
kernel-rt-vdso
kernel-rt-livepatch
gfs2-kmp-rt
kernel-rt-extra
kernel-rt-vdso-debuginfo
kselftests-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt
kernel-rt_debug-devel
kernel-rt-devel
reiserfs-kmp-rt
kernel-devel-rt
kernel-rt-optional-debuginfo
kernel-syms-rt
kernel-rt_debug-debugsource
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso
kernel-rt-livepatch-devel
kernel-rt-optional
cluster-md-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-extra-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kselftests-kmp-rt
cluster-md-kmp-rt
kernel-debug-vdso
kernel-default-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo

How to mitigate CVE-2022-49381

Install update from vendor's website.

Linux kernel - update to 5.15.47
kernel-livepatch-SLE15-SP4_Update_38-debugsource - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_158-default - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_158-default-debuginfo - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150500_55_100-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_100-default - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_25-debugsource - update to 1-150500.11.3.1
kernel - update to 4.19.90-2503.5.0.0321
bpftool - update to 4.19.90-2503.5.0.0321
bpftool-debuginfo - update to 4.19.90-2503.5.0.0321
kernel-debuginfo - update to 4.19.90-2503.5.0.0321
kernel-debugsource - update to 4.19.90-2503.5.0.0321
kernel-devel - update to 4.19.90-2503.5.0.0321
kernel-source - update to 4.19.90-2503.5.0.0321
kernel-tools - update to 4.19.90-2503.5.0.0321
kernel-tools-debuginfo - update to 4.19.90-2503.5.0.0321
kernel-tools-devel - update to 4.19.90-2503.5.0.0321
perf - update to 4.19.90-2503.5.0.0321
perf-debuginfo - update to 4.19.90-2503.5.0.0321
python2-perf - update to 4.19.90-2503.5.0.0321
python2-perf-debuginfo - update to 4.19.90-2503.5.0.0321
python3-perf - update to 4.19.90-2503.5.0.0321
python3-perf-debuginfo - update to 4.19.90-2503.5.0.0321
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-rt - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
dtb-arm - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-renesas - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-marvell - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-cavium - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-socionext - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-amazon - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-freescale - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-qcom - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-amd - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-altera - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-sprd - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-exynos - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
ocfs2-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
ocfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-debug-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-debug-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-debug-devel-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-debug-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-debug - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-docs - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-source - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-macros - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-syms - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-devel-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-apple - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-apm - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-lg - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
cluster-md-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dlm-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
gfs2-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
cluster-md-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
gfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
dlm-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.158.1, 5.14.21-150500.55.100.1
kernel-default-base - addressed in versions 5.14.21-150400.24.158.1.150400.24.78.1, 5.14.21-150500.55.100.1.150500.6.47.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.158.1.150400.24.78.1, 5.14.21-150500.55.100.1.150500.6.47.1
kernel-rt_debug - update to 5.14.21-150500.13.91.1
kernel-rt-vdso - update to 5.14.21-150500.13.91.1
kernel-rt-livepatch - update to 5.14.21-150500.13.91.1
gfs2-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-extra - update to 5.14.21-150500.13.91.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.91.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.91.1
dlm-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.91.1
kernel-rt-devel - update to 5.14.21-150500.13.91.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-devel-rt - update to 5.14.21-150500.13.91.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.91.1
kernel-syms-rt - update to 5.14.21-150500.13.91.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.91.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.91.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.91.1
kernel-rt-optional - update to 5.14.21-150500.13.91.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.91.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.91.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.91.1
kselftests-kmp-rt - update to 5.14.21-150500.13.91.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-debug-vdso - update to 5.14.21-150500.55.100.1
kernel-default-vdso - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.100.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-debug-vdso-debuginfo - update to 5.14.21-150500.55.100.1

External References

Related Security Bulletins