Input validation error in Linux kernel - CVE-2022-49348
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104725
CSH Severity: Low
CVSS v4.0: 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-2022-49348
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the __ext4_fill_super() and __ext4_remount() functions in fs/ext4/super.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49348
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/55b4dbb29054a05d839562f6d635ce05669b016d
- https://git.kernel.org/stable/c/af2f1932743fb52ebcb008ad7ac500d9df0aa796
- https://git.kernel.org/stable/c/b99fd73418350dea360da8311e87a6a7b0e15a4c
- https://git.kernel.org/stable/c/c878bea3c9d724ddfa05a813f30de3d25a0ba83f
- https://git.kernel.org/stable/c/cc5b09cb6dacd4b32640537929ab4ee8fb2b9e04
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121