linux-kernel - Re: [PATCH] mm: cma: Fix incorrect type conversion for size during dma allocation

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Message-ID: <20151013021155.GA24333@kroah.com>
Date:	Mon, 12 Oct 2015 19:11:55 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Rohit Vaswani <rvaswani@...eaurora.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm: cma: Fix incorrect type conversion for size during
 dma allocation

On Mon, Oct 12, 2015 at 05:00:47PM -0700, Rohit Vaswani wrote:
> This was found during userspace fuzzing test when a large size
> dma cma allocation is made by driver(like ion) through userspace.
> 
>  show_stack+0x10/0x1c
>  dump_stack+0x74/0xc8
>  kasan_report_error+0x2b0/0x408
>  kasan_report+0x34/0x40
>  __asan_storeN+0x15c/0x168
>  memset+0x20/0x44
>  __dma_alloc_coherent+0x114/0x18c
> 
> Change-Id: I4e2db81c496604ecbe93ec21fe8ee94589c8eb63

We can't do anything with gerrit ids, sorry, please remove.

thanks,

greg k-h
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