Out-of-bounds read in Linux kernel - CVE-2022-49907

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Main Vulnerability Database Vulnerabilities #VU108252

Out-of-bounds read in Linux kernel - CVE-2022-49907

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


Vulnerability identifier: #VU108252
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-2022-49907
CWE-ID: CWE-125
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 an out-of-bounds read error within the __mdiobus_register() function in drivers/net/phy/mdio_bus.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Live Patching
openEuler
kgraft-patch-4_12_14-122_261-default
ocfs2-kmp-default-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-devel-debuginfo
kernel-default-man
kernel-devel
kernel-macros
kernel-source
kernel-default
cluster-md-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-devel
kernel-default-base
dlm-kmp-default-debuginfo
dlm-kmp-default
kernel-default-debuginfo
kernel-default-debugsource
cluster-md-kmp-default
kernel-syms
ocfs2-kmp-default
gfs2-kmp-default
gfs2-kmp-default-debuginfo
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel

How to mitigate CVE-2022-49907

Install update from vendor's website.

Linux kernel - update to 4.19.265
kgraft-patch-4_12_14-122_261-default - update to 1-8.3.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.261.1
kernel-default-kgraft-devel - update to 4.12.14-122.261.1
kernel-default-kgraft - update to 4.12.14-122.261.1
kernel-default-devel-debuginfo - update to 4.12.14-122.261.1
kernel-default-man - update to 4.12.14-122.261.1
kernel-devel - update to 4.12.14-122.261.1
kernel-macros - update to 4.12.14-122.261.1
kernel-source - update to 4.12.14-122.261.1
kernel-default - update to 4.12.14-122.261.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.261.1
kernel-default-base-debuginfo - update to 4.12.14-122.261.1
kernel-default-devel - update to 4.12.14-122.261.1
kernel-default-base - update to 4.12.14-122.261.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.261.1
dlm-kmp-default - update to 4.12.14-122.261.1
kernel-default-debuginfo - update to 4.12.14-122.261.1
kernel-default-debugsource - update to 4.12.14-122.261.1
cluster-md-kmp-default - update to 4.12.14-122.261.1
kernel-syms - update to 4.12.14-122.261.1
ocfs2-kmp-default - update to 4.12.14-122.261.1
gfs2-kmp-default - update to 4.12.14-122.261.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.261.1
python3-perf-debuginfo - update to 4.19.90-2507.2.0.0335
python3-perf - update to 4.19.90-2507.2.0.0335
python2-perf-debuginfo - update to 4.19.90-2507.2.0.0335
python2-perf - update to 4.19.90-2507.2.0.0335
perf-debuginfo - update to 4.19.90-2507.2.0.0335
perf - update to 4.19.90-2507.2.0.0335
kernel-tools-devel - update to 4.19.90-2507.2.0.0335
kernel-tools-debuginfo - update to 4.19.90-2507.2.0.0335
kernel-tools - update to 4.19.90-2507.2.0.0335
kernel-source - update to 4.19.90-2507.2.0.0335
kernel-devel - update to 4.19.90-2507.2.0.0335
kernel-debugsource - update to 4.19.90-2507.2.0.0335
kernel-debuginfo - update to 4.19.90-2507.2.0.0335
bpftool-debuginfo - update to 4.19.90-2507.2.0.0335
bpftool - update to 4.19.90-2507.2.0.0335
kernel - update to 4.19.90-2507.2.0.0335

External References

Related Security Bulletins