This is a note to let you know that I've just added the patch titled
ovl: fix random return value on mount
to the 4.9-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-random-return-value-on-mount.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8fc646b44385ff0a9853f6590497e43049eeb311 Mon Sep 17 00:00:00 2001
From: Amir Goldstein <amir73il@xxxxxxxxx>
Date: Tue, 11 Jul 2017 15:58:35 +0300
Subject: ovl: fix random return value on mount
From: Amir Goldstein <amir73il@xxxxxxxxx>
commit 8fc646b44385ff0a9853f6590497e43049eeb311 upstream.
On failure to prepare_creds(), mount fails with a random
return value, as err was last set to an integer cast of
a valid lower mnt pointer or set to 0 if inodes index feature
is enabled.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: 3fe6e52f0626 ("ovl: override creds with the ones from ...")
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/overlayfs/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1310,6 +1310,7 @@ static int ovl_fill_super(struct super_b
else
sb->s_d_op = &ovl_dentry_operations;
+ err = -ENOMEM;
ufs->creator_cred = cred = prepare_creds();
if (!cred)
goto out_put_lower_mnt;
Patches currently in stable-queue which might be from amir73il@xxxxxxxxx are
queue-4.9/ovl-drop-cap_sys_resource-from-saved-mounter-s-credentials.patch
queue-4.9/ovl-fix-random-return-value-on-mount.patch