Patch "ovl: fix dput() of ERR_PTR in ovl_cleanup_index()" has been added to the 4.13-stable tree

Patch "ovl: fix dput() of ERR_PTR in ovl_cleanup_index()" has been added to the 4.13-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ovl: fix dput() of ERR_PTR in ovl_cleanup_index()

to the 4.13-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ovl-fix-dput-of-err_ptr-in-ovl_cleanup_index.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 9f4ec904dbd4eb1a2db10d5e7dc16eae386fe64d Mon Sep 17 00:00:00 2001
From: Amir Goldstein <amir73il@gmail.com>
Date: Sun, 24 Sep 2017 17:36:26 +0300
Subject: ovl: fix dput() of ERR_PTR in ovl_cleanup_index()

From: Amir Goldstein <amir73il@gmail.com>

commit 9f4ec904dbd4eb1a2db10d5e7dc16eae386fe64d upstream.

Fixes: caf70cb2ba5d ("ovl: cleanup orphan index entries")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/overlayfs/util.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -418,7 +418,7 @@ void ovl_inuse_unlock(struct dentry *den
 	}
 }
 
-/* Called must hold OVL_I(inode)->oi_lock */
+/* Caller must hold OVL_I(inode)->lock */
 static void ovl_cleanup_index(struct dentry *dentry)
 {
 	struct inode *dir = ovl_indexdir(dentry->d_sb)->d_inode;
@@ -457,6 +457,9 @@ static void ovl_cleanup_index(struct den
 	err = PTR_ERR(index);
 	if (!IS_ERR(index))
 		err = ovl_cleanup(dir, index);
+	else
+		index = NULL;
+
 	inode_unlock(dir);
 	if (err)
 		goto fail;


Patches currently in stable-queue which might be from amir73il@gmail.com are

queue-4.13/ovl-fix-missing-unlock_rename-in-ovl_do_copy_up.patch
queue-4.13/ovl-fix-error-value-printed-in-ovl_lookup_index.patch
queue-4.13/ovl-fix-dput-of-err_ptr-in-ovl_cleanup_index.patch
queue-4.13/ovl-fix-regression-caused-by-exclusive-upper-work-dir-protection.patch
queue-4.13/ovl-fix-dentry-leak-in-ovl_indexdir_cleanup.patch