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Re: BUG: KASAN: use-after-free in xfs_iflush_cluster+0x9d7/0xaf0

To: Andrea Gelmini <andrea.gelmini@xxxxxxxxx>
Subject: Re: BUG: KASAN: use-after-free in xfs_iflush_cluster+0x9d7/0xaf0
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 15 Dec 2015 06:54:22 +1100
Cc: linux-kernel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20151214180048.GA15690@glen>
References: <20151214180048.GA15690@glen>
User-agent: Mutt/1.5.21 (2010-09-15)
On Mon, Dec 14, 2015 at 07:00:48PM +0100, Andrea Gelmini wrote:
> Hi everybody,
>    using dev kernel v4.4, I have this:
> 
> [40240.371807] 
> ==================================================================
> [40240.371826] BUG: KASAN: use-after-free in xfs_iflush_cluster+0x9d7/0xaf0 
> at addr ffff88001ed15428
> [40240.371832] Read of size 4 by task xfsaild/dm-0/332
> [40240.371834] 
> =============================================================================
> [40240.371839] BUG xfs_ili (Tainted: G    B          ): kasan: bad access 
> detected
> [40240.371842] 
> -----------------------------------------------------------------------------
.....

What line of code does this address correspond to in your kernel?

        xfs_iflush_cluster+0x9d7

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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