SB20251001168 - Memory leak in Linux kernel ext4
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001168
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) Memory leak (CVE-ID: CVE-2022-50465)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ext4_fc_reserve_space() and ext4_fc_write_tail() functions in fs/ext4/fast_commit.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/594bc43b410316d70bb42aeff168837888d96810
- https://git.kernel.org/stable/c/7c1fb65e8ce85c281d2cba9c236f9edbbc4eaca6
- https://git.kernel.org/stable/c/871800770d7f2f952c7249ad52485c3564dab44e
- https://git.kernel.org/stable/c/b8b7922374b00a44137e5bcdd46ef86c8b065f27
- https://git.kernel.org/stable/c/d9ba03eb03dc2dccb5450de388ea46bdcaaf8348
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18