[patch 035/192] tools/vm/page_owner_sort.c: check malloc() return

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From: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Subject: tools/vm/page_owner_sort.c: check malloc() return

Link: https://lkml.kernel.org/r/20210506131402.10416-1-tangbin@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 tools/vm/page_owner_sort.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/tools/vm/page_owner_sort.c~tools-vm-page_owner_sortc-fix-the-potential-stack-overflow-risk
+++ a/tools/vm/page_owner_sort.c
@@ -132,6 +132,10 @@ int main(int argc, char **argv)
 	qsort(list, list_size, sizeof(list[0]), compare_txt);
 
 	list2 = malloc(sizeof(*list) * list_size);
+	if (!list2) {
+		printf("Out of memory\n");
+		exit(1);
+	}
 
 	printf("culling\n");
 
_



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