From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- fs/userfaultfd.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/userfaultfd.c') diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 503117031..66cdb4461 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -286,6 +286,12 @@ int handle_userfault(struct vm_area_struct *vma, unsigned long address, if (unlikely(ACCESS_ONCE(ctx->released))) goto out; + /* + * We don't do userfault handling for the final child pid update. + */ + if (current->flags & PF_EXITING) + goto out; + /* * Check that we can return VM_FAULT_RETRY. * -- cgit v1.2.3-54-g00ecf