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Re: [PATCH for-6.2 1/2] esp: ensure that async_len is reset to 0 during


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH for-6.2 1/2] esp: ensure that async_len is reset to 0 during esp_hard_reset()
Date: Thu, 18 Nov 2021 12:30:12 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0

On 11/18/21 11:03, Mark Cave-Ayland wrote:
> If a reset command is sent after data has been transferred into the SCSI 
> buffer
> ensure that async_len is reset to 0. Otherwise a subsequent TI command assumes
> the SCSI buffer contains data to be transferred to the device causing it to
> dereference the stale async_buf pointer.
> 
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> Fixes: https://gitlab.com/qemu-project/qemu/-/issues/724
> ---
>  hw/scsi/esp.c | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>





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