#VU104749 Improper error handling in Linux kernel - CVE-2022-49409
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104749
Vulnerability risk: Low
CVSSv4.0: 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-2022-49409
CWE-ID: CWE-388
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the ext4_valid_extent_entries() function in fs/ext4/extents.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/3c617827cd51018bc377bd2954e176920ddbcfad
- https://git.kernel.org/stable/c/4fd58b5cf118d2d9038a0b8c9cc0e43096297686
- https://git.kernel.org/stable/c/59cf2fabbfe76de29d88dd7ae69858a25735b59f
- https://git.kernel.org/stable/c/d0083459e2b6b07ebd78bea2fe684a19cc0f3d0f
- https://git.kernel.org/stable/c/d36f6ed761b53933b0b4126486c10d3da7751e7f
- https://git.kernel.org/stable/c/ea6ea18b3ab0c0d7fefffb3c4d27df758b1c790a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3