SB20250226582 - Improper error handling in Linux kernel ext4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226582
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper error handling (CVE-ID: CVE-2022-49409)
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.
References
- 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