lkml.org 
[lkml]   [2012]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/7] AppArmor: Retrieve the dentry_path for error reporting when path lookup fails
Date
When __d_path and d_absolute_path fail due to the name being outside of
the current namespace no name is reported. Use dentry_path to provide
some hint as to which file was being accessed.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
---
security/apparmor/path.c | 15 +++++++++------
1 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/security/apparmor/path.c b/security/apparmor/path.c
index c31ce83..b3cf4cd 100644
--- a/security/apparmor/path.c
+++ b/security/apparmor/path.c
@@ -94,18 +94,21 @@ static int d_namespace_path(struct path *path, char *buf, int buflen,
} else
res = d_absolute_path(path, buf, buflen);

- *name = res;
/* handle error conditions - and still allow a partial path to
* be returned.
*/
if (IS_ERR(res)) {
- error = PTR_ERR(res);
- *name = buf;
- goto out;
- }
- if (!our_mnt(path->mnt))
+ res = dentry_path_raw(path->dentry, buf, buflen);
+ if (IS_ERR(res)) {
+ error = PTR_ERR(res);
+ *name = buf;
+ goto out;
+ };
+ } else if (!our_mnt(path->mnt))
connected = 0;

+ *name = res;
+
ok:
/* Handle two cases:
* 1. A deleted dentry && profile is not allowing mediation of deleted
--
1.7.9


\
 
 \ /
  Last update: 2012-02-27 23:25    [W:0.167 / U:0.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site