Memory leak in Linux kernel - CVE-2022-48757

 

Memory leak in Linux kernel - CVE-2022-48757

Published: June 20, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU92886
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-2022-48757
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 fanout_add() and packet_create() functions in net/packet/af_packet.c, within the ptype_seq_show() function in net/core/net-procfs.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Anolis OS
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
openEuler
Technical Support Appliance
Robotic Process Automation for Cloud Pak
Juniper Secure Analytics (JSA)
Red Hat OpenShift Container Platform
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-debug-modules
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug
kernel-debug-core
kernel-debug-devel
kernel-debug-modules-extra
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-abi-stablelists
kernel-doc
bpftool-debuginfo
kernel-debuginfo
python3-perf-debuginfo
python2-perf-debuginfo
python2-perf
perf-debuginfo
kernel-tools-devel
kernel-tools-debuginfo
kernel-source
kernel-debugsource
Session Smart Router
IBM Qradar SIEM

How to mitigate CVE-2022-48757

Install update from vendor's website.

Linux kernel - addressed in versions 4.4.302, 4.9.300, 4.14.265, 4.19.228, 5.4.176, 5.10.96, 5.15.19, 5.16.5, 5.17
Technical Support Appliance - update to 3.0.1
Juniper Secure Analytics (JSA) - update to 7.5.0 UP10 IF02
Red Hat OpenShift Container Platform - addressed in versions 4.13.48, 4.15.28
kernel (Red Hat package) - update to 4.18.0-553.16.1.el8_10
kernel-rt (Red Hat package) - update to 4.18.0-553.16.1.rt7.357.el8_10
kernel-debug-modules - update to 4.18.0-553.16.1.0.1
bpftool - update to 4.18.0-553.16.1.0.1
kernel - update to 4.18.0-553.16.1.0.1
kernel-core - update to 4.18.0-553.16.1.0.1
kernel-cross-headers - update to 4.18.0-553.16.1.0.1
kernel-debug - update to 4.18.0-553.16.1.0.1
kernel-debug-core - update to 4.18.0-553.16.1.0.1
kernel-debug-devel - update to 4.18.0-553.16.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.16.1.0.1
kernel-devel - update to 4.18.0-553.16.1.0.1
kernel-headers - update to 4.18.0-553.16.1.0.1
kernel-modules - update to 4.18.0-553.16.1.0.1
kernel-modules-extra - update to 4.18.0-553.16.1.0.1
kernel-tools - update to 4.18.0-553.16.1.0.1
kernel-tools-libs - update to 4.18.0-553.16.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.16.1.0.1
perf - update to 4.18.0-553.16.1.0.1
python3-perf - update to 4.18.0-553.16.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.16.1.0.1
kernel-doc - update to 4.18.0-553.16.1.0.1
bpftool - update to 4.19.90-2407.4.0.0286
kernel - update to 4.19.90-2407.4.0.0286
bpftool-debuginfo - update to 4.19.90-2407.4.0.0286
kernel-debuginfo - update to 4.19.90-2407.4.0.0286
python3-perf-debuginfo - update to 4.19.90-2407.4.0.0286
python3-perf - update to 4.19.90-2407.4.0.0286
python2-perf-debuginfo - update to 4.19.90-2407.4.0.0286
python2-perf - update to 4.19.90-2407.4.0.0286
perf-debuginfo - update to 4.19.90-2407.4.0.0286
perf - update to 4.19.90-2407.4.0.0286
kernel-tools-devel - update to 4.19.90-2407.4.0.0286
kernel-tools-debuginfo - update to 4.19.90-2407.4.0.0286
kernel-tools - update to 4.19.90-2407.4.0.0286
kernel-source - update to 4.19.90-2407.4.0.0286
kernel-devel - update to 4.19.90-2407.4.0.0286
kernel-debugsource - update to 4.19.90-2407.4.0.0286
Session Smart Router - addressed in versions 6.2.10, 6.3.7
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
Robotic Process Automation for Cloud Pak - addressed in versions 21.0.7.18, 23.0.19

External References

Related Security Bulletins