linux-kernel - Re: [PATCH] Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.

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Date:	Tue, 3 Mar 2015 10:23:56 -0500
From:	Chris Mason <clm@...com>
To:	<dsterba@...e.cz>
CC:	Quentin Casasnovas <quentin.casasnovas@...cle.com>,
	Mark Fasheh <mfasheh@...e.de>,
	lkml <linux-kernel@...r.kernel.org>,
	<linux-btrfs@...r.kernel.org>
Subject: Re: [PATCH] Btrfs:__add_inode_ref: out of bounds memory read when
 looking for extended ref.



On Tue, Mar 3, 2015 at 9:38 AM, David Sterba <dsterba@...e.cz> wrote:
> Adding linux-btrfs to CC
> 
> On Thu, Feb 26, 2015 at 05:00:37PM +0100, Quentin Casasnovas wrote:
>>  Improper arithmetics when calculting the address of the extended 
>> ref could
>>  lead to an out of bounds memory read and kernel panic.
>> 
>>  Signed-off-by: Quentin Casasnovas <quentin.casasnovas@...cle.com>
> 
> Good catch.

Thanks Quentin, can you please bounce the patch to linux-btrfs so it'll 
be in patchwork?

-chris



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