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authorEric W. Biederman <ebiederm@xmission.com>2012-08-03 09:38:08 -0700
committerEric W. Biederman <ebiederm@xmission.com>2012-08-03 19:23:45 -0700
commit81abe27b10af98f861c955be63da700938dd59c1 (patch)
tree924a629ec61becbdfdc6bc4fd86ea21759c6a030 /fs/namei.c
parentd755586052e3f3020f7ed25a83945ecd38a5613a (diff)
downloadlinux-81abe27b10af98f861c955be63da700938dd59c1.tar.bz2
userns: Fix link restrictions to use uid_eq
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 1b464390dde8..05480a64d7b7 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -678,7 +678,7 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd)
/* Allowed if owner and follower match. */
inode = link->dentry->d_inode;
- if (current_cred()->fsuid == inode->i_uid)
+ if (uid_eq(current_cred()->fsuid, inode->i_uid))
return 0;
/* Allowed if parent directory not sticky and world-writable. */
@@ -687,7 +687,7 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd)
return 0;
/* Allowed if parent directory and link owner match. */
- if (parent->i_uid == inode->i_uid)
+ if (uid_eq(parent->i_uid, inode->i_uid))
return 0;
path_put_conditional(link, nd);
@@ -757,7 +757,7 @@ static int may_linkat(struct path *link)
/* Source inode owner (or CAP_FOWNER) can hardlink all they like,
* otherwise, it must be a safe source.
*/
- if (cred->fsuid == inode->i_uid || safe_hardlink_source(inode) ||
+ if (uid_eq(cred->fsuid, inode->i_uid) || safe_hardlink_source(inode) ||
capable(CAP_FOWNER))
return 0;