[PATCH linux-next] fs/super.c: use strscpy() is more robust and safer

From: cuijinpeng666
Date: Wed Oct 19 2022 - 23:09:34 EST


From: Jinpeng Cui <cui.jinpeng2@xxxxxxxxxx>

The implementation of strscpy() is more robust and safer.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@xxxxxxxxxx>
---
fs/super.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/super.c b/fs/super.c
index 8d39e4f11cfa..ca791da59c98 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -574,7 +574,7 @@ struct super_block *sget_fc(struct fs_context *fc,
fc->s_fs_info = NULL;
s->s_type = fc->fs_type;
s->s_iflags |= fc->s_iflags;
- strlcpy(s->s_id, s->s_type->name, sizeof(s->s_id));
+ strscpy(s->s_id, s->s_type->name, sizeof(s->s_id));
list_add_tail(&s->s_list, &super_blocks);
hlist_add_head(&s->s_instances, &s->s_type->fs_supers);
spin_unlock(&sb_lock);
@@ -653,7 +653,7 @@ struct super_block *sget(struct file_system_type *type,
return ERR_PTR(err);
}
s->s_type = type;
- strlcpy(s->s_id, type->name, sizeof(s->s_id));
+ strscpy(s->s_id, type->name, sizeof(s->s_id));
list_add_tail(&s->s_list, &super_blocks);
hlist_add_head(&s->s_instances, &type->fs_supers);
spin_unlock(&sb_lock);
--
2.25.1