diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-29 08:26:59 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-29 08:26:59 +0200 |
| commit | a4859d75944a726533ab86d24bb5ffd1b2b7d6cc (patch) | |
| tree | 1a1c97b15b21d90334b1ca0d0c47bae2cf0e2595 | |
| parent | 4c2e07c6a29e0129e975727b9f57eede813eea85 (diff) | |
| download | linux-a4859d75944a726533ab86d24bb5ffd1b2b7d6cc.tar.gz linux-a4859d75944a726533ab86d24bb5ffd1b2b7d6cc.tar.bz2 linux-a4859d75944a726533ab86d24bb5ffd1b2b7d6cc.zip | |
ovl: fix dentry leak for default_permissions
When using the 'default_permissions' mount option, ovl_permission() on
non-directories was missing a dput(alias), resulting in "BUG Dentry still
in use".
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 8d3095f4ad47 ("ovl: default permissions")
Cc: <stable@vger.kernel.org> # v4.5+
| -rw-r--r-- | fs/overlayfs/inode.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 1dbeab6cf96e..8514d692042b 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -121,16 +121,18 @@ int ovl_permission(struct inode *inode, int mask) err = vfs_getattr(&realpath, &stat); if (err) - return err; + goto out_dput; + err = -ESTALE; if ((stat.mode ^ inode->i_mode) & S_IFMT) - return -ESTALE; + goto out_dput; inode->i_mode = stat.mode; inode->i_uid = stat.uid; inode->i_gid = stat.gid; - return generic_permission(inode, mask); + err = generic_permission(inode, mask); + goto out_dput; } /* Careful in RCU walk mode */ |