CVE-2025-39754: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: mm/smaps: fix race between smapshugetlbrange and migration smapshugetlbrange handles the pte without holdling ptl, and may be concurrenct with migration, leaing to BUGON in pfnswapentrytopage. The race is as follows...