Information disclosure in Linux kernel - CVE-2022-49020

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Main Vulnerability Database Vulnerabilities #VU99116

Information disclosure in Linux kernel - CVE-2022-49020

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


Vulnerability identifier: #VU99116
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-49020
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to information disclosure within the p9_socket_open() function in net/9p/trans_fd.c. A local user can gain access to sensitive information.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
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 Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Micro
openSUSE Leap Micro
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
openSUSE Leap
openEuler
kgraft-patch-4_12_14-122_234-default
kernel-livepatch-5_14_21-150500_13_76-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_76-rt
kernel-livepatch-SLE15-SP5-RT_Update_22-debugsource
kernel-livepatch-SLE15-SP5_Update_21-debugsource
kernel-livepatch-5_14_21-150500_55_88-default
kernel-livepatch-5_14_21-150500_55_88-default-debuginfo
kernel-default-base
kernel-default-devel
kernel-devel
kernel-macros
kernel-source
kernel-default-man
kernel-default-devel-debuginfo
gfs2-kmp-default-debuginfo
kernel-default-debugsource
kernel-syms
dlm-kmp-default
kernel-default-base-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default
gfs2-kmp-default
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-debuginfo
ocfs2-kmp-default
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-tools
kernel-headers
kernel-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-source-rt
kernel-devel-rt
kernel-rt_debug
kernel-rt
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt_debug-livepatch-devel
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-livepatch
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-vdso
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
cluster-md-kmp-rt
kernel-syms-rt
kernel-rt-vdso-debuginfo
kernel-rt-debugsource
dlm-kmp-azure-debuginfo
cluster-md-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-devel-azure
kernel-azure-extra
cluster-md-kmp-azure
kernel-source-azure
kernel-azure-devel-debuginfo
gfs2-kmp-azure-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
kernel-azure-vdso
kernel-64kb
kernel-64kb-debugsource
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-64kb-devel
kernel-default-livepatch
kernel-64kb-debuginfo
kernel-default-livepatch-devel
kernel-64kb-devel-debuginfo

How to mitigate CVE-2022-49020

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.335, 4.14.301, 4.19.268, 5.4.226, 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-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-SLE15-SP5-RT_Update_22-debugsource - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_21-debugsource - 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-5_14_21-150500_55_88-default-debuginfo - update to 1-150500.11.5.1
kernel-default-base - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1.150500.6.39.4
kernel-default-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-devel - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-macros - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-source - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-default-man - update to 4.12.14-122.234.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-default-debugsource - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-syms - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
dlm-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-default-base-debuginfo - update to 4.12.14-122.234.1
kernel-default-kgraft-devel - update to 4.12.14-122.234.1
kernel-default-kgraft - update to 4.12.14-122.234.1
kernel-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
gfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.234.1, 5.14.21-150500.55.88.1
kernel-source - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
python3-perf-debuginfo - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
python3-perf - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
python2-perf-debuginfo - update to 4.19.90-2411.2.0.0302
python2-perf - update to 4.19.90-2411.2.0.0302
perf-debuginfo - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
perf - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-tools-devel - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-tools-debuginfo - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
bpftool - update to 4.19.90-2411.2.0.0302
bpftool-debuginfo - update to 4.19.90-2411.2.0.0302
kernel-debuginfo - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-debugsource - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-devel - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-tools - addressed in versions 4.19.90-2411.2.0.0302, 5.10.0-136.100.0.181
kernel-headers - update to 5.10.0-136.100.0.181
kernel-rt-debuginfo - update to 5.14.21-150500.13.76.1
kernel-rt_debug-vdso-debuginfo - 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-source-rt - update to 5.14.21-150500.13.76.1
kernel-devel-rt - update to 5.14.21-150500.13.76.1
kernel-rt_debug - update to 5.14.21-150500.13.76.1
kernel-rt - 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_debug-livepatch-devel - 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-livepatch - 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-vdso - 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
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-rt-debugsource - update to 5.14.21-150500.13.76.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
cluster-md-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-devel-azure - update to 5.14.21-150500.33.72.1
kernel-azure-extra - update to 5.14.21-150500.33.72.1
cluster-md-kmp-azure - update to 5.14.21-150500.33.72.1
kernel-source-azure - update to 5.14.21-150500.33.72.1
kernel-azure-devel-debuginfo - update to 5.14.21-150500.33.72.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150500.33.72.1
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
kernel-azure-vdso - update to 5.14.21-150500.33.72.1
kernel-64kb - update to 5.14.21-150500.55.88.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.88.1
kernel-zfcpdump - update to 5.14.21-150500.55.88.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.88.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.88.1
kernel-docs - update to 5.14.21-150500.55.88.1
kernel-obs-build - update to 5.14.21-150500.55.88.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.88.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.88.1
reiserfs-kmp-default - update to 5.14.21-150500.55.88.1
kernel-64kb-devel - update to 5.14.21-150500.55.88.1
kernel-default-livepatch - update to 5.14.21-150500.55.88.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.88.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.88.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.88.1

External References

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