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-rw-r--r--kernel/fork.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index f71b67dc156d..242c8c93d285 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -595,6 +595,8 @@ static void check_mm(struct mm_struct *mm)
void __mmdrop(struct mm_struct *mm)
{
BUG_ON(mm == &init_mm);
+ WARN_ON_ONCE(mm == current->mm);
+ WARN_ON_ONCE(mm == current->active_mm);
mm_free_pgd(mm);
destroy_context(mm);
hmm_mm_destroy(mm);