Re: [PATCH] net/packet: fix 4gb buffer limit due to overflow check
- Date: Sat, 09 Feb 2019 19:01:14 -0800 (PST)
- From: David Miller <davem@xxxxxxxxxxxxx>
- Subject: Re: [PATCH] net/packet: fix 4gb buffer limit due to overflow check
From: Kal Conley <kal.conley@xxxxxxxxxxx>
Date: Sat, 9 Feb 2019 21:37:00 +0100
> When calculating rb->frames_per_block * req->tp_block_nr the result
> can overflow. Check it for overflow without limiting the total buffer
> size to UINT_MAX.
> This change fixes support for packet ring buffers >= UINT_MAX.
Please resubmit with a proper signoff and also an appropriate Fixes: