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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2014-08-20 09:14:04 +0400
committerSerge Hallyn <serge.hallyn@ubuntu.com>2014-08-27 06:52:09 +0400
commit8fe7a268b18ebc89203c766b020b9e32f1cfeebf (patch)
treede9400f69db6da34c7e3017c1a6bc8ca9f763e04
parent52addcf9d6669fa439387610bc65c92fa0980cef (diff)
downloadlinux-8fe7a268b18ebc89203c766b020b9e32f1cfeebf.tar.xz
tomoyo: Fix pathname calculation breakage.
Commit 7177a9c4b509 ("fs: call rename2 if exists") changed "struct inode_operations"->rename == NULL if "struct inode_operations"->rename2 != NULL . TOMOYO needs to check for both ->rename and ->rename2 , or a system on (e.g.) ext4 filesystem won't boot. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
-rw-r--r--security/tomoyo/realpath.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index a3386d119425..bed745c8b1a3 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -173,7 +173,7 @@ static char *tomoyo_get_local_path(struct dentry *dentry, char * const buffer,
* Use filesystem name if filesystem does not support rename()
* operation.
*/
- if (!inode->i_op->rename)
+ if (!inode->i_op->rename && !inode->i_op->rename2)
goto prepend_filesystem_name;
}
/* Prepend device name. */
@@ -282,7 +282,8 @@ char *tomoyo_realpath_from_path(struct path *path)
* Get local name for filesystems without rename() operation
* or dentry without vfsmount.
*/
- if (!path->mnt || !inode->i_op->rename)
+ if (!path->mnt ||
+ (!inode->i_op->rename && !inode->i_op->rename2))
pos = tomoyo_get_local_path(path->dentry, buf,
buf_len - 1);
/* Get absolute name for the rest. */