SB2025070294 - Improper locking in Linux kernel
Published: July 2, 2025
Security Bulletin ID
SB2025070294
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-2025-38084)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __split_vma() function in mm/vma.c, within the hugetlb_vma_lock_free(), hugetlb_vm_op_split(), move_hugetlb_state() and hugetlb_unshare_pmds() functions 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/081056dc00a27bccb55ccc3c6f230a3d5fd3f7e0
- https://git.kernel.org/stable/c/2511ac64bc1617ca716d3ba8464e481a647c1902
- https://git.kernel.org/stable/c/366298f2b04d2bf1f2f2b7078405bdf9df9bd5d0
- https://git.kernel.org/stable/c/8a21d5584826f4880f45bbf8f72375f4e6c0ff2a
- https://git.kernel.org/stable/c/9cf5b2a3b72c23fb7b84736d5d19ee6ea718762b
- https://git.kernel.org/stable/c/af6cfcd0efb7f051af221c418ec8b37a10211947
- https://git.kernel.org/stable/c/e8847d18cd9fff1edbb45e963d9141273c3b539c