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Date:   Tue, 4 Aug 2020 09:18:36 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Pavel Machek <pavel@denx.de>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Yoon Jungyeon <jungyeon@gatech.edu>,
        Nikolay Borisov <nborisov@suse.com>, Qu Wenruo <wqu@suse.com>,
        David Sterba <dsterba@suse.com>,
        Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 4.19 09/56] btrfs: inode: Verify inode mode to avoid NULL
 pointer dereference
Message-ID: <20200804071836.GA1416416@kroah.com>
References: <20200803121850.306734207@linuxfoundation.org>
 <20200803121850.766021165@linuxfoundation.org>
 <20200804071132.d6awebnvt7gnqfkb@duo.ucw.cz>
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On Tue, Aug 04, 2020 at 09:11:32AM +0200, Pavel Machek wrote:
> Hi!
> 
> 
> > @@ -6993,6 +7010,14 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
> >  	extent_start = found_key.offset;
> >  	if (found_type == BTRFS_FILE_EXTENT_REG ||
> >  	    found_type == BTRFS_FILE_EXTENT_PREALLOC) {
> > +		/* Only regular file could have regular/prealloc extent */
> > +		if (!S_ISREG(inode->vfs_inode.i_mode)) {
> > +			ret = -EUCLEAN;
> > +			btrfs_crit(fs_info,
> > +		"regular/prealloc extent found for non-regular inode %llu",
> > +				   btrfs_ino(inode));
> > +			goto out;
> > +		}
> 
> This sets ret, but function returns err. Fix was already submitted.

What is the git commit id of that fix?

thanks,

greg k-h