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Code Issues Releases Wiki Activity

tools/vm/page_owner_sort.c: add a security check

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Add a security check after using malloc() to allocate memory.

Link: https://lkml.kernel.org/r/20220301151438.166118-2-yejiajian2018@email.szu.edu.cn
Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiajian Ye 2022-03-24 18:09:23 -07:00 committed by Linus Torvalds
parent 59d7cb27d5
commit 56465a3830
1 changed files with 6 additions and 0 deletions
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6
tools/vm/page_owner_sort.c
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@ -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);