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Re: [Qemu-devel] [PATCH] audio: intel-hda: check stream entry count duri
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] audio: intel-hda: check stream entry count during transfer |
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Date: |
Thu, 20 Oct 2016 10:37:26 +0100 |
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User-agent: |
Mutt/1.7.0 (2016-08-17) |
On Thu, Oct 20, 2016 at 01:10:24PM +0530, P J P wrote:
> From: Prasad J Pandit <address@hidden>
>
> Intel HDA emulator uses stream of buffers during DMA data
> transfers. Each entry has buffer length and buffer pointer
> position, which are used to derive bytes to 'copy'. If this
> length and buffer pointer were to be same, 'copy' could be
> set to zero(0), leading to an infinite loop. Add check to
> avoid it.
>
> Reported-by: Huawei PSIRT <address@hidden>
> Signed-off-by: Prasad J Pandit <address@hidden>
> ---
> hw/audio/intel-hda.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi <address@hidden>
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