SB20250509146 - Input validation error in Linux kernel overlayfs
Published: May 9, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250509146
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) Input validation error (CVE-ID: CVE-2025-37863)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ovl_get_lowerstack() function in fs/overlayfs/super.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/0874b629f65320778e7e3e206177770666d9db18
- https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d
- https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331
- https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.25
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.88