SB2025062072 - Improper locking in Linux kernel ext4
Published: June 20, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025062072
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-2022-50082)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ext4_bmap() function in fs/ext4/inode.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/30dfb75e1f8645404a536c74d468d498adcd4e74
- https://git.kernel.org/stable/c/51ae846cff568c8c29921b1b28eb2dfbcd4ac12d
- https://git.kernel.org/stable/c/a9fe6d1e3d343d7309f501b1f48020ce7127221f
- https://git.kernel.org/stable/c/e1682c7171a6c0ff576fe8116b8cba5b8f538b94
- https://git.kernel.org/stable/c/fa6482f374fda29a71ad44d76d35b4842d43cda4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2