Linux kernel bug fix: khugepaged: collapse_pte_mapped_thp() protect the pmd lock
Subsystem: memory (mm/khugepaged.c)
Bug type: crash, severity: high
Files changed: mm/khugepaged.c
Introduced by Song Liu on 2019-09-24 15:54:11 -0700; fixed by Hugh Dickins on 2020-08-07 11:33:29 -0700 (lifetime: 317 days)