* [PATCH] tools/vm/page_owner_sort.c: Fix the potential stack overflow risk
@ 2021-05-06 13:14 Tang Bin
0 siblings, 0 replies; only message in thread
From: Tang Bin @ 2021-05-06 13:14 UTC (permalink / raw)
To: akpm, ch0.han; +Cc: linux-kernel, Tang Bin, Zhang Shengju
Add judgment to fix the potential stack overflow risk
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
---
tools/vm/page_owner_sort.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index 85eb65ea1..bb7c35b77 100644
--- a/tools/vm/page_owner_sort.c
+++ b/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");
--
2.20.1.windows.1
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2021-05-06 13:14 [PATCH] tools/vm/page_owner_sort.c: Fix the potential stack overflow risk Tang Bin
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