CVE-2026-46318

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Linux kernel where hugetlb VMA lock allocation is incorrectly handled during the mmap prepare stage. If an allocation fails after mmap prepare is called, it may result in a lock leak. To address this, the changes introduced in the mmap prepare update for hugetlbfs were reverted. The process involves using vma set flags() within an .mmap hook, which is permissible because the VMA is not yet linked into the tree, preventing concurrent access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.