Integer underflow in Linux kernel - CVE-2022-48643

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Main Vulnerability Database Vulnerabilities #VU91670

Integer underflow in Linux kernel - CVE-2022-48643

Published: June 10, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU91670
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-48643
CWE-ID: CWE-191
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the nf_tables_addchain() function in net/netfilter/nf_tables_api.c. A local user can execute arbitrary code.


Affected software

Linux kernel
openEuler
kernel
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo

How to mitigate CVE-2022-48643

Install update from vendor's website.

Linux kernel - addressed in versions 5.10.146, 5.15.71, 5.19.12, 6.0
kernel - update to 5.10.0-136.91.0.172
kernel-debuginfo - update to 5.10.0-136.91.0.172
kernel-debugsource - update to 5.10.0-136.91.0.172
kernel-devel - update to 5.10.0-136.91.0.172
kernel-headers - update to 5.10.0-136.91.0.172
kernel-source - update to 5.10.0-136.91.0.172
kernel-tools - update to 5.10.0-136.91.0.172
kernel-tools-debuginfo - update to 5.10.0-136.91.0.172
kernel-tools-devel - update to 5.10.0-136.91.0.172
perf - update to 5.10.0-136.91.0.172
perf-debuginfo - update to 5.10.0-136.91.0.172
python3-perf - update to 5.10.0-136.91.0.172
python3-perf-debuginfo - update to 5.10.0-136.91.0.172

External References

Related Security Bulletins