kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugepmdunshare vs GUP-fast race hugepmdunshare drops a reference on a page table that may have previously been shared across processes, potentially turning it into a normal page table used in another process in...

PT-2025-27291

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A race condition exists between huge pmd unshare and GUP-fast in the Linux kernel. The huge pmd unshare function drops a reference on a page table that may have been shared across...