Improper locking in Linux kernel - CVE-2022-48936

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU96428

Improper locking in Linux kernel - CVE-2022-48936

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


Vulnerability identifier: #VU96428
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-2022-48936
CWE-ID: CWE-667
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 improper locking within the ipv6_gso_segment() function in net/ipv6/ip6_offload.c, within the inet_gso_segment() function in net/ipv4/af_inet.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Anolis OS
Red Hat OpenShift Dev Spaces
Red Hat OpenShift Container Platform
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-doc
kernel-abi-stablelists
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-modules-extra
kernel-modules
kernel-headers
kernel-devel
kernel-debug-modules-extra
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
kernel-cross-headers
kernel-core
kernel
bpftool

How to mitigate CVE-2022-48936

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.304, 4.14.269, 4.19.232, 5.4.182, 5.10.103, 5.15.26, 5.16.12, 5.17
Red Hat OpenShift Dev Spaces - update to 3.17.0
Red Hat OpenShift Container Platform - addressed in versions 4.14.41, 4.15.38
kernel (Red Hat package) - update to 4.18.0-553.27.1.el8_10
kernel-rt (Red Hat package) - update to 4.18.0-553.27.1.rt7.368.el8_10
kernel-doc - update to 4.18.0-553.27.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.27.1.0.1
python3-perf - update to 4.18.0-553.27.1.0.1
perf - update to 4.18.0-553.27.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.27.1.0.1
kernel-tools-libs - update to 4.18.0-553.27.1.0.1
kernel-tools - update to 4.18.0-553.27.1.0.1
kernel-modules-extra - update to 4.18.0-553.27.1.0.1
kernel-modules - update to 4.18.0-553.27.1.0.1
kernel-headers - update to 4.18.0-553.27.1.0.1
kernel-devel - update to 4.18.0-553.27.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.27.1.0.1
kernel-debug-modules - update to 4.18.0-553.27.1.0.1
kernel-debug-devel - update to 4.18.0-553.27.1.0.1
kernel-debug-core - update to 4.18.0-553.27.1.0.1
kernel-debug - update to 4.18.0-553.27.1.0.1
kernel-cross-headers - update to 4.18.0-553.27.1.0.1
kernel-core - update to 4.18.0-553.27.1.0.1
kernel - update to 4.18.0-553.27.1.0.1
bpftool - update to 4.18.0-553.27.1.0.1

External References

Related Security Bulletins