The patch titled
Subject: tools/vm/page_owner_sort.c: add a security check
has been added to the -mm tree. Its filename is
tools-vm-page_owner_sortc-add-a-security-check.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/tools-vm-page_owner_sortc-add-a-security-check.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/tools-vm-page_owner_sortc-add-a-security-check.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Jiajian Ye <yejiajian2018@xxxxxxxxxxxxxxxx>
Subject: tools/vm/page_owner_sort.c: add a security check
Add a security check after using malloc() to allocate memory.
Link: https://lkml.kernel.org/r/20220301151438.166118-2-yejiajian2018@xxxxxxxxxxxxxxxx
Signed-off-by: Jiajian Ye <yejiajian2018@xxxxxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Yinan Zhang <zhangyinan2019@xxxxxxxxxxxxxxxx>
Cc: Yixuan Cao <caoyixuan2019@xxxxxxxxxxxxxxxx>
Cc: Zhenliang Wei <weizhenliang@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/vm/page_owner_sort.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/tools/vm/page_owner_sort.c~tools-vm-page_owner_sortc-add-a-security-check
+++ a/tools/vm/page_owner_sort.c
@@ -217,7 +217,13 @@ static void add_list(char *buf, int len)
printf("max_size too small??\n");
exit(1);
}
+
list[list_size].txt = malloc(len+1);
+ if (!list[list_size].txt) {
+ printf("Out of memory\n");
+ exit(1);
+ }
+
list[list_size].len = len;
list[list_size].num = 1;
list[list_size].page_num = get_page_num(buf);
_
Patches currently in -mm which might be from yejiajian2018@xxxxxxxxxxxxxxxx are
tools-vm-page_owner_sortc-fix-comments.patch
tools-vm-page_owner_sortc-add-a-security-check.patch
tools-vm-page_owner_sortc-support-sorting-by-tgid-and-update-documentation.patch
