SB2025042237 - Use-after-free in Linux kernel ext4
Published: April 22, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025042237
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-37785)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __ext4_check_dir_entry() function in fs/ext4/dir.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/52a5509ab19a5d3afe301165d9b5787bba34d842
- https://git.kernel.org/stable/c/53bc45da8d8da92ec07877f5922b130562eb4b00
- https://git.kernel.org/stable/c/89503e5eae64637d0fa2218912b54660effe7d93
- https://git.kernel.org/stable/c/ac28c5684c1cdab650a7e5065b19e91577d37a4b
- https://git.kernel.org/stable/c/b47584c556444cf7acb66b26a62cbc348eb92b78
- https://git.kernel.org/stable/c/b7531a4f99c3887439d778afaf418d1a01a5f01b
- https://git.kernel.org/stable/c/d5e206778e96e8667d3bde695ad372c296dc9353
- https://git.kernel.org/stable/c/e47f472a664d70a3d104a6c2a035cdff55a719b4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.236