From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Sun, 11 Oct 2020 03:35:05 +0000 (-0400)
Subject: mm/mmap: Fix memory leak by maple tree
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=78c762fffbbc52b8394ce1d81d38402a75b0fa53;p=users%2Fjedix%2Flinux-maple.git

mm/mmap: Fix memory leak by maple tree

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/kernel/fork.c b/kernel/fork.c
index 7a7c88dbcec9b..476acbf370a85 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -610,6 +610,7 @@ out:
 	mmap_write_unlock(mm);
 	flush_tlb_mm(oldmm);
 	mmap_write_unlock(oldmm);
+	mas_empty_alloc(&mas);
 	dup_userfaultfd_complete(&uf);
 fail_uprobe_end:
 	uprobe_end_dup_mmap();