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From: Eric Biggers <ebiggers@kernel.org>
To: "Theodore Y. Ts'o" <tytso@mit.edu>
Cc: kbuild test robot <lkp@intel.com>,
	kbuild-all@lists.01.org,
	Ext4 Developers List <linux-ext4@vger.kernel.org>,
	syzbot+f8d6f8386ceacdbfff57@syzkaller.appspotmail.com,
	stable@kernel.org
Subject: Re: [PATCH -v2] ext4: add more paranoia checking in ext4_expand_extra_isize handling
Date: Mon, 18 Nov 2019 18:15:26 -0800	[thread overview]
Message-ID: <20191119021526.GB3147@sol.localdomain> (raw)
In-Reply-To: <20191110121510.GH23325@mit.edu>

On Sun, Nov 10, 2019 at 07:15:10AM -0500, Theodore Y. Ts'o wrote:
> I hadn't gotten around to resending the patch.  The original version
> had a number of last-minute typos that had crept in...
> 
>       	     		    	       	   - Ted
> 
> From a67ad537964d10f94a4b990c084365e75316cde8 Mon Sep 17 00:00:00 2001
> From: Theodore Ts'o <tytso@mit.edu>
> Date: Thu, 7 Nov 2019 21:43:41 -0500
> Subject: [PATCH] ext4: add more paranoia checking in ext4_expand_extra_isize
>  handling
> 
> 
> It's possible to specify a non-zero s_want_extra_isize via debugging
> option, and this can cause bad things(tm) to happen when using a file
> system with an inode size of 128 bytes.
> 
> Add better checking when the file system is mounted, as well as when
> we are actually doing the trying to do the inode expansion.
> 
> Reported-by: syzbot+f8d6f8386ceacdbfff57@syzkaller.appspotmail.com
> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
> Cc: stable@kernel.org

Is this patch intended to address
https://lore.kernel.org/linux-ext4/000000000000950f21059564e4c7@google.com
as well?  If so, you can add the second Reported-by line so that both syzbot
reports get closed.

- Eric

  reply	other threads:[~2019-11-19  2:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08  2:48 [PATCH] ext4: add more paranoia checking in ext4_expand_extra_isize handling Theodore Ts'o
2019-11-10 10:12 ` kbuild test robot
2019-11-10 12:15   ` [PATCH -v2] " Theodore Y. Ts'o
2019-11-19  2:15     ` Eric Biggers [this message]
2019-11-19  4:21       ` Theodore Y. Ts'o
2019-11-19  4:36         ` Eric Biggers

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