Move xen patchset to new version's subdir.

[people/teissler/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.apparmor / d_namespace_path_oops_fix.diff

diff --git a/src/patches/suse-2.6.27.31/patches.apparmor/d_namespace_path_oops_fix.diff b/src/patches/suse-2.6.27.31/patches.apparmor/d_namespace_path_oops_fix.diff
new file mode 100644 (file)
index 0000000..ea3697c
--- /dev/null
+++ b/src/patches/suse-2.6.27.31/patches.apparmor/d_namespace_path_oops_fix.diff
@@ -0,0 +1,25 @@
+From: Miklos Szeredi <mszeredi@suse.cz>
+Subject: fix oops in d_namespace_path
+Patch-mainline: no
+References: bnc#433504
+
+d_namespace_path uses the current->fs->root to get the current
+namespace.  If root is detached root.mnt->mnt_ns will be NULL, causing
+an Oops.  Fix by checking this before dereferencing the mnt_ns.
+
+Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
+---
+ fs/namespace.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -2312,7 +2312,7 @@ char *d_namespace_path(struct dentry *de
+       path_get(&current->fs->root);
+       read_unlock(&current->fs->lock);
+       spin_lock(&vfsmount_lock);
+-      if (root.mnt)
++      if (root.mnt && root.mnt->mnt_ns)
+               ns_root.mnt = mntget(root.mnt->mnt_ns->root);
+       if (ns_root.mnt)
+               ns_root.dentry = dget(ns_root.mnt->mnt_root);