Memory leak in Linux kernel - CVE-2022-49915

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Main Vulnerability Database Vulnerabilities #VU108158

Memory leak in Linux kernel - CVE-2022-49915

Published: May 2, 2025 / Updated: May 10, 2025


Vulnerability identifier: #VU108158
CSH Severity: Low
CVSS v4 BT: 4.3 [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/E:U/U:Clear]
CVE-ID: CVE-2022-49915
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 mISDN_register_device() function in drivers/isdn/mISDN/core.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP3
SUSE Enterprise Server 15 SP3 Business Critical
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
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
openEuler
kgraft-patch-4_12_14-122_261-default
kernel-livepatch-5_3_18-150300_59_207-default-debuginfo
kernel-livepatch-SLE15-SP3_Update_58-debugsource
kernel-livepatch-5_3_18-150300_59_207-default
kernel-livepatch-5_3_18-150300_59_207-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_207-preempt
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
kernel-livepatch-5_14_21-150500_55_110-default-debuginfo
kernel-livepatch-5_14_21-150500_55_110-default
kernel-livepatch-SLE15-SP5_Update_27-debugsource
kernel-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-default-devel
kernel-default-base
kernel-default-base-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default
kernel-source
kernel-macros
kernel-devel
kernel-default-man
kernel-default-devel-debuginfo
kernel-default-kgraft
kernel-default-kgraft-devel
dlm-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
gfs2-kmp-default
ocfs2-kmp-default
kernel-syms
cluster-md-kmp-default
kernel-default-debugsource
dlm-kmp-default
kernel
bpftool
python3-perf
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-tools
kernel-tools-devel
python2-perf-debuginfo
python3-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-debuginfo
dtb-mediatek
kselftests-kmp-64kb
dtb-renesas
ocfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb
dtb-xilinx
kernel-64kb-optional
kernel-64kb-devel-debuginfo
dtb-freescale
dtb-amlogic
kernel-preempt-devel-debuginfo
dtb-aarch64
kernel-64kb-extra
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
gfs2-kmp-preempt-debuginfo
gfs2-kmp-preempt
kernel-preempt-extra
kernel-preempt-debuginfo
reiserfs-kmp-preempt
kernel-preempt-devel
dtb-hisilicon
dtb-qcom
dtb-rockchip
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb
dtb-socionext
reiserfs-kmp-64kb-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
dtb-apm
dtb-lg
dtb-marvell
dtb-sprd
kernel-64kb-debuginfo
kselftests-kmp-64kb-debuginfo
dtb-al
kernel-64kb
kernel-64kb-optional-debuginfo
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
dlm-kmp-64kb-debuginfo
dtb-allwinner
reiserfs-kmp-64kb
kselftests-kmp-default
kernel-obs-qa
kernel-default-extra-debuginfo
kernel-default-optional
kselftests-kmp-default-debuginfo
reiserfs-kmp-default
kernel-obs-build
reiserfs-kmp-default-debuginfo
kernel-obs-build-debugsource
kernel-preempt-optional-debuginfo
kernel-default-extra
kernel-docs-html
kernel-source-vanilla
kernel-docs
dlm-kmp-preempt
kernel-default-optional-debuginfo
kernel-preempt-extra-debuginfo
dlm-kmp-preempt-debuginfo
kselftests-kmp-preempt
ocfs2-kmp-preempt
reiserfs-kmp-preempt-debuginfo
kernel-preempt-optional
kselftests-kmp-preempt-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-kvmsmall
kernel-default-base-rebuild
kernel-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-source-rt
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso
kernel-rt-optional
kernel-rt-livepatch
kernel-rt_debug-debugsource
dlm-kmp-rt
kernel-rt_debug-devel
kernel-devel-rt
kernel-rt_debug-debuginfo
kernel-syms-rt
kselftests-kmp-rt
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt_debug-devel-debuginfo
kernel-rt_debug
reiserfs-kmp-rt-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt-extra
kernel-rt-vdso-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-extra-debuginfo
kernel-rt-optional-debuginfo
reiserfs-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-livepatch-devel
ocfs2-kmp-rt
gfs2-kmp-rt
cluster-md-kmp-rt
kernel-rt-vdso

How to mitigate CVE-2022-49915

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.333, 4.14.299, 4.19.265, 5.4.224, 5.10.154, 5.15.78, 6.0.8, 6.1
kgraft-patch-4_12_14-122_261-default - update to 1-8.3.1
kernel-livepatch-5_3_18-150300_59_207-default-debuginfo - update to 1-150300.7.3.1
kernel-livepatch-SLE15-SP3_Update_58-debugsource - 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-preempt-debuginfo - 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-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
kernel-livepatch-5_14_21-150500_55_110-default-debuginfo - update to 1-150500.11.7.1
kernel-livepatch-5_14_21-150500_55_110-default - update to 1-150500.11.7.1
kernel-livepatch-SLE15-SP5_Update_27-debugsource - update to 1-150500.11.7.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1, 5.14.21-150500.55.110.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default-devel - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default-base - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1.150300.18.124.1
kernel-default-base-debuginfo - update to 4.12.14-122.261.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1, 5.14.21-150500.55.110.1
kernel-source - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-macros - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-devel - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default-man - update to 4.12.14-122.261.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default-kgraft - update to 4.12.14-122.261.1
kernel-default-kgraft-devel - update to 4.12.14-122.261.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
gfs2-kmp-default - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-syms - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel-default-debugsource - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1, 5.14.21-150500.55.110.1
dlm-kmp-default - addressed in versions 4.12.14-122.261.1, 5.3.18-150300.59.207.1
kernel - update to 4.19.90-2505.3.0.0327
bpftool - update to 4.19.90-2505.3.0.0327
python3-perf - update to 4.19.90-2505.3.0.0327
bpftool-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-debugsource - update to 4.19.90-2505.3.0.0327
kernel-devel - update to 4.19.90-2505.3.0.0327
kernel-source - update to 4.19.90-2505.3.0.0327
kernel-tools - update to 4.19.90-2505.3.0.0327
kernel-tools-devel - update to 4.19.90-2505.3.0.0327
python2-perf-debuginfo - update to 4.19.90-2505.3.0.0327
python3-perf-debuginfo - update to 4.19.90-2505.3.0.0327
python2-perf - update to 4.19.90-2505.3.0.0327
perf-debuginfo - update to 4.19.90-2505.3.0.0327
perf - update to 4.19.90-2505.3.0.0327
kernel-tools-debuginfo - update to 4.19.90-2505.3.0.0327
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
kernel-64kb-optional - update to 5.3.18-150300.59.207.1
kernel-64kb-devel-debuginfo - 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
kernel-preempt-devel-debuginfo - update to 5.3.18-150300.59.207.1
dtb-aarch64 - update to 5.3.18-150300.59.207.1
kernel-64kb-extra - 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
gfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
gfs2-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-extra - update to 5.3.18-150300.59.207.1
kernel-preempt-debuginfo - update to 5.3.18-150300.59.207.1
reiserfs-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-preempt-devel - update to 5.3.18-150300.59.207.1
dtb-hisilicon - update to 5.3.18-150300.59.207.1
dtb-qcom - update to 5.3.18-150300.59.207.1
dtb-rockchip - 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 - update to 5.3.18-150300.59.207.1
dtb-socionext - update to 5.3.18-150300.59.207.1
reiserfs-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
kernel-64kb-devel - update to 5.3.18-150300.59.207.1
kernel-64kb-debugsource - update to 5.3.18-150300.59.207.1
dtb-apm - update to 5.3.18-150300.59.207.1
dtb-lg - update to 5.3.18-150300.59.207.1
dtb-marvell - update to 5.3.18-150300.59.207.1
dtb-sprd - update to 5.3.18-150300.59.207.1
kernel-64kb-debuginfo - update to 5.3.18-150300.59.207.1
kselftests-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dtb-al - update to 5.3.18-150300.59.207.1
kernel-64kb - update to 5.3.18-150300.59.207.1
kernel-64kb-optional-debuginfo - 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
dlm-kmp-64kb-debuginfo - update to 5.3.18-150300.59.207.1
dtb-allwinner - update to 5.3.18-150300.59.207.1
reiserfs-kmp-64kb - update to 5.3.18-150300.59.207.1
kselftests-kmp-default - update to 5.3.18-150300.59.207.1
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
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
kernel-obs-build-debugsource - update to 5.3.18-150300.59.207.1
kernel-preempt-optional-debuginfo - update to 5.3.18-150300.59.207.1
kernel-default-extra - update to 5.3.18-150300.59.207.1
kernel-docs-html - update to 5.3.18-150300.59.207.1
kernel-source-vanilla - update to 5.3.18-150300.59.207.1
kernel-docs - update to 5.3.18-150300.59.207.1
dlm-kmp-preempt - update to 5.3.18-150300.59.207.1
kernel-default-optional-debuginfo - update to 5.3.18-150300.59.207.1
kernel-preempt-extra-debuginfo - 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
kselftests-kmp-preempt-debuginfo - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-devel-debuginfo - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-debuginfo - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-debugsource - update to 5.3.18-150300.59.207.1
kernel-kvmsmall-devel - update to 5.3.18-150300.59.207.1
kernel-default-livepatch-devel - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1, 5.14.21-150500.55.110.1
kernel-default-livepatch - addressed in versions 5.3.18-150300.59.207.1, 5.14.21-150400.24.167.1, 5.14.21-150500.55.110.1
kernel-kvmsmall - update to 5.3.18-150300.59.207.1
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, 5.14.21-150500.13.97.1
kernel-rt-debugsource - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1, 5.14.21-150500.13.97.1
kernel-rt-debuginfo - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1, 5.14.21-150500.13.97.1
kernel-source-rt - addressed in versions 5.3.18-150300.211.1, 5.14.21-150400.15.121.1, 5.14.21-150500.13.97.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.97.1
kernel-rt-optional - update to 5.14.21-150500.13.97.1
kernel-rt-livepatch - update to 5.14.21-150500.13.97.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.97.1
dlm-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.97.1
kernel-devel-rt - update to 5.14.21-150500.13.97.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.97.1
kernel-syms-rt - update to 5.14.21-150500.13.97.1
kselftests-kmp-rt - update to 5.14.21-150500.13.97.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-devel - update to 5.14.21-150500.13.97.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt_debug - update to 5.14.21-150500.13.97.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-extra - update to 5.14.21-150500.13.97.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.97.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.97.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.97.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.97.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.97.1
gfs2-kmp-rt - update to 5.14.21-150500.13.97.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-rt-vdso - update to 5.14.21-150500.13.97.1

External References

Related Security Bulletins