From: Chris Mason <chris.mason@oracle.com>
Date: Tue, 12 Jun 2007 12:21:35 +0000 (-0400)
Subject: Btrfs: no slashes in subvolume names
X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~548
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8a712645c3fbbf43293af8640af337b7cf1fef01;p=karo-tx-linux.git

Btrfs: no slashes in subvolume names

Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 62a3a778d37d..1cabc1951b0e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1831,6 +1831,8 @@ int btrfs_ioctl(struct inode *inode, struct file *filp, unsigned int
 		namelen = strlen(vol_args.name);
 		if (namelen > BTRFS_VOL_NAME_MAX)
 			return -EINVAL;
+		if (strchr(vol_args.name, '/'))
+			return -EINVAL;
 		path = btrfs_alloc_path();
 		if (!path)
 			return -ENOMEM;