2020-05-15 10:09:21

by Miles Chen

[permalink] [raw]
Subject: [PATCH] dm: replace strncpy() with strscpy()

Replace strncpy() with strscpy() to guarantee a NULL-terminated
string.

Detected by Coverity.

Signed-off-by: Miles Chen <[email protected]>
---
drivers/md/dm-ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index ac83f5002ce5..4dc3658e3351 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1167,7 +1167,7 @@ static void retrieve_status(struct dm_table *table,
spec->status = 0;
spec->sector_start = ti->begin;
spec->length = ti->len;
- strncpy(spec->target_type, ti->type->name,
+ strscpy(spec->target_type, ti->type->name,
sizeof(spec->target_type));

outptr += sizeof(struct dm_target_spec);
--
2.18.0