Input validation error in Linux kernel - CVE-2022-48877

 

Input validation error in Linux kernel - CVE-2022-48877

Published: August 21, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU96369
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-2022-48877
CWE-ID: CWE-20
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 input validation within the f2fs_lookup_extent_tree() function in fs/f2fs/extent_cache.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
openEuler
bpftool
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
kernel
kernel-headers

How to mitigate CVE-2022-48877

Install update from vendor's website.

Linux kernel - addressed in versions 4.14.304, 4.19.271, 5.4.230, 5.10.165, 5.15.90, 6.1.8, 6.2
bpftool - update to 4.19.90-2409.1.0.0293
python3-perf-debuginfo - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
python3-perf - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
python2-perf-debuginfo - update to 4.19.90-2409.1.0.0293
python2-perf - update to 4.19.90-2409.1.0.0293
perf-debuginfo - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
perf - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-tools-devel - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-tools-debuginfo - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-tools - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-source - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-devel - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-debugsource - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-debuginfo - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
bpftool-debuginfo - update to 4.19.90-2409.1.0.0293
kernel - addressed in versions 4.19.90-2409.1.0.0293, 5.10.0-136.92.0.173
kernel-headers - update to 5.10.0-136.92.0.173

External References

Related Security Bulletins