[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 2/4] esp: don't overflow cmdfifo if TC is larger than the cmd
|
From: |
Alexander Bulekov |
|
Subject: |
Re: [PATCH 2/4] esp: don't overflow cmdfifo if TC is larger than the cmdfifo size |
|
Date: |
Wed, 17 Mar 2021 12:07:58 -0400 |
On 210316 2330, Mark Cave-Ayland wrote:
> If a guest transfers the message out/command phase data using DMA with a TC
> that is larger than the cmdfifo size then the cmdfifo overflows triggering
> an assert. Limit the size of the transfer to the free space available in
> cmdfifo.
>
> Buglink: https://bugs.launchpad.net/qemu/+bug/1919036
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> ---
> hw/scsi/esp.c | 1 +
> 1 file changed, 1 insertion(+)
Tested-by: Alexander Bulekov <alxndr@bu.edu>
- [PATCH 0/4] esp: fix asserts/segfaults discovered by fuzzer, Mark Cave-Ayland, 2021/03/16
- [PATCH 1/4] esp: don't underflow cmdfifo if no message out/command data is present, Mark Cave-Ayland, 2021/03/16
- [PATCH 2/4] esp: don't overflow cmdfifo if TC is larger than the cmdfifo size, Mark Cave-Ayland, 2021/03/16
- [PATCH 3/4] esp: ensure cmdfifo is not empty and current_dev is non-NULL, Mark Cave-Ayland, 2021/03/16
- [PATCH 4/4] esp: always check current_req is not NULL before use in DMA callbacks, Mark Cave-Ayland, 2021/03/16
- Re: [PATCH 0/4] esp: fix asserts/segfaults discovered by fuzzer, Philippe Mathieu-Daudé, 2021/03/16
- Re: [PATCH 0/4] esp: fix asserts/segfaults discovered by fuzzer, Paolo Bonzini, 2021/03/17