[PATCH 3/6] Check that the new path while moving a file is not too long

[philipp.ammann@xxxxxxxxx]

From: Andreas Schneider <asn@xxxxxxxxxxxxxx>

Signed-off-by: Andreas Schneider <asn@xxxxxxxxxxxxxx>
---
 drivers/staging/exfat/exfat_super.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 5f6caee819a6..b63186a67af6 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -1300,6 +1300,9 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
 	}
 
 	/* check the validity of directory name in the given new pathname */
+	if (strlen(new_path) >= MAX_NAME_LENGTH)
+		return FFS_NAMETOOLONG;
+
 	ret = resolve_path(new_parent_inode, new_path, &newdir, &uni_name);
 	if (ret)
 		goto out2;
-- 
2.21.0