From: Kusanagi Kouichi <slash@ac.auone-net.jp>
Date: Mon, 28 Jan 2013 11:33:31 +0000 (+0000)
Subject: Btrfs: Check CAP_DAC_READ_SEARCH for BTRFS_IOC_INO_PATHS
X-Git-Tag: v3.9-rc1~17^2~29^2~54
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=82b22ac8f651aebbf0149cbbbd5808f07753b09c;p=karo-tx-linux.git

Btrfs: Check CAP_DAC_READ_SEARCH for BTRFS_IOC_INO_PATHS

CAP_DAC_READ_SEARCH overrides read and search permission check on
file and directory. It seems fit for BTRFS_IOC_INO_PATHS.

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 744aabf11ce5..1b554b47e814 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3290,7 +3290,7 @@ static long btrfs_ioctl_ino_to_path(struct btrfs_root *root, void __user *arg)
 	struct inode_fs_paths *ipath = NULL;
 	struct btrfs_path *path;
 
-	if (!capable(CAP_SYS_ADMIN))
+	if (!capable(CAP_DAC_READ_SEARCH))
 		return -EPERM;
 
 	path = btrfs_alloc_path();