SB2025100846 - Memory leak in Linux kernel ext4
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025100846
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-2022-50512)
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_record_regions() function 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/2cfb769d60a2a57eb3566765428b6131cd16dcfe
- https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be
- https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158
- https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739
- https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17