On Sat, 8 Feb 2020 08:35:25 +0000 Li Xinhai <lixinhai.lxh@xxxxxxxxx> wrote: > This patchset fix the misuse of parenet anon_vma, which mainly caused by > child vma's vm_next and vm_prev are left same as its parent after > duplicate vma. Finally, code reached parent vma's neighbor by referring > pointer of child vma and executed wrong logic. > > The first two patches fix relevant issues, and the third patch sets vm_next > and vm_prev to NULL when duplicate vma to prevent potential misuse in future. > > Li Xinhai (3): > mm: don't prepare anon_vma if vma has VM_WIPEONFORK > Revert "mm/rmap.c: reuse mergeable anon_vma as parent when fork" > mm: set vm_next and vm_prev to NULL in vm_area_dup() > > kernel/fork.c | 10 ++++++---- > mm/rmap.c | 13 ------------- > 2 files changed, 6 insertions(+), 17 deletions(-) Can we please have some review input on this series?
