On Tue, 2022-02-15 at 12:19 -0800, Suren Baghdasaryan wrote: > After exit_mmap frees all vmas in the mm, mm->mmap needs to be reset, > otherwise it points to a vma that was freed and when reused leads to > a use-after-free bug. > > Reported-by: syzbot+2ccf63a4bd07cf39cab0@xxxxxxxxxxxxxxxxxxxxxxxxx > Suggested-by: Michal Hocko <mhocko@xxxxxxxx> > Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx> > Reviewed-by: Rik van Riel <riel@xxxxxxxxxxx> -- All Rights Reversed.
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