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Date:   Wed, 31 Jul 2019 17:58:13 +0200
From:   David Sterba <dsterba@suse.cz>
To:     Qu Wenruo <wqu@suse.com>
Cc:     linux-btrfs@vger.kernel.org,
        Jungyeon Yoon <jungyeon.yoon@gmail.com>
Subject: Re: [PATCH 0/3] btrfs: Part 2 of enhanced defence against fuzzed
 images
Message-ID: <20190731155813.GP28208@twin.jikos.cz>
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        linux-btrfs@vger.kernel.org,
        Jungyeon Yoon <jungyeon.yoon@gmail.com>
References: <20190716090034.11641-1-wqu@suse.com>
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On Tue, Jul 16, 2019 at 05:00:31PM +0800, Qu Wenruo wrote:
> This wave has the following features:
> - Hunt down BUG_ON() in btrfs_delete_delayed_dir_index()
>   EEXIST can cause BUG_ON(). And all callers of this function has
>   already handled error by aborting transacation.
> 
> - Only allocate extents from the same block group type
>   This is a very tricky bug, needs MIXED_GROUP super flag with regular
>   block groups (separate META and DATA) and corrupted extent tree.
> 
> - ROOT_ITEM check for tree checker
>   This kills the unaligned bytenr, invalid level and incorrect reloc
>   tree.
> 
> Reported-by: Jungyeon Yoon <jungyeon.yoon@gmail.com>
> 
> Qu Wenruo (3):
>   btrfs: delayed-inode: Kill the BUG_ON() in
>     btrfs_delete_delayed_dir_index()
>   btrfs: extent-tree: Make sure we only allocate extents from block
>     groups with the same type
>   btrfs: tree-checker: Add ROOT_ITEM check

Added to misc-next, with some minor updates, thanks.