SB2024061338 - Improper locking in Linux kernel ext4
Published: June 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024061338
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 locking (CVE-ID: CVE-2022-48631)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __ext4_ext_check() 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/bb7eb3ca4b3b0d2c7872cf1a41c30f5e5bd65df0
- https://git.kernel.org/stable/c/958b0ee23f5ac106e7cc11472b71aa2ea9a033bc
- https://git.kernel.org/stable/c/be4df018c0be5ebecf1ca510feacc23be415cefc
- https://git.kernel.org/stable/c/2f5e9de15e4f55fbf56f22d4a2ce406246cc462d
- https://git.kernel.org/stable/c/29a5b8a137ac8eb410cc823653a29ac0e7b7e1b0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.146
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.215
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0