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Re: [PATCH] ppc/xive: Fix uint32_t overflow


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH] ppc/xive: Fix uint32_t overflow
Date: Wed, 13 Sep 2023 08:20:50 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.15.0

On 13/9/23 07:56, Cédric Le Goater wrote:
As reported by Coverity, "idx << xive->pc_shift" is evaluated using
32-bit arithmetic, and then used in a context expecting a "uint64_t".
Add a uint64_t cast.

Fixes: Coverity CID 1519049
Fixes: b68147b7a5bf ("ppc/xive: Add support for the PC MMIOs")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
  hw/intc/pnv_xive.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>




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