From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Tue, 16 Feb 2021 15:49:09 +0000 (-0500)
Subject: mm/mmap: Add validate_mm() to __vma_adjust() start
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=bd229e70206c42479f6724e8302f303c272fa2b5;p=users%2Fjedix%2Flinux-maple.git

mm/mmap: Add validate_mm() to __vma_adjust() start

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

diff --git a/mm/mmap.c b/mm/mmap.c
index bebce12197b7..fe950d52c8da 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -649,6 +649,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
 	long adjust_next = 0;
 	int remove_next = 0;
 
+	validate_mm(mm);
 	if (next && !insert) {
 		struct vm_area_struct *exporter = NULL, *importer = NULL;