SB20251112117 - Improper locking in Linux kernel mm
Published: November 12, 2025
Security Bulletin ID
SB20251112117
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-2025-40153)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the hugetlb_change_protection() function in mm/hugetlb.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/30498c44c2a0b20f6833ed7d8fc3df901507f760
- https://git.kernel.org/stable/c/4975c975ed9457a77953a26aeef85fdba7cf5498
- https://git.kernel.org/stable/c/547e123e9d342a44c756446640ed847a8aeec611
- https://git.kernel.org/stable/c/5783485ab2be06be5312b26c8793526edc09123d
- https://git.kernel.org/stable/c/957faf9582f92bb2be8ebe4ab6aa1c2bc71d9859
- https://git.kernel.org/stable/c/964598e6f70a1be9fe675280bf16b4f96b0a6809
- https://git.kernel.org/stable/c/c6096f3947f68f96defedb8764b3b1ca4cf3469f
- https://git.kernel.org/stable/c/f52ce0ea90c83a28904c7cc203a70e6434adfecb