diff options
| author | Jiajian Ye <yejiajian2018@email.szu.edu.cn> | 2022-03-24 18:09:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-24 19:06:45 -0700 |
| commit | 56465a38305f22bca3469c2738d7320a0c333e72 (patch) | |
| tree | 1666df4da4cb92fb76b6084a24831a6b8536f50e /tools/vm | |
| parent | 59d7cb27d528eae2f060d548dcd14d292b19fda3 (diff) | |
| download | linux-56465a38305f22bca3469c2738d7320a0c333e72.tar.bz2 | |
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@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>
Diffstat (limited to 'tools/vm')
| -rw-r--r-- | tools/vm/page_owner_sort.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c index 79d69c3b84ed..69fb6ca7c0b7 100644 --- a/tools/vm/page_owner_sort.c +++ b/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); |