From: Thomas Monjalon <thomas@monjalon.net>
To: Long Li <longli@microsoft.com>
Cc: dev@dpdk.org, Stephen Hemminger <sthemmin@microsoft.com>,
Stephen Hemminger <stephen@networkplumber.org>,
stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] bus/vmbus: calcuate the correct start address for mapping ring buffer
Date: Thu, 25 Jun 2020 01:05:34 +0200 [thread overview]
Message-ID: <17849898.BQ2eLMOKaY@thomas> (raw)
In-Reply-To: <20200612090633.1a3d90a7@hermes.lan>
12/06/2020 18:06, Stephen Hemminger:
> On Thu, 11 Jun 2020 17:48:25 -0700
> longli@linuxonhyperv.com wrote:
>
> > From: Long Li <longli@microsoft.com>
> >
> > vmbus_map_addr is used as the next start virutal address for mapping ring
> > buffer. However it's updated based on ring_buf, which is a pointer to an
> > address on the stack. The next ring buffer may be mapped to an unexpected
> > address.
> >
> > Fix this by calculating vmbus_map_addr based on returned virtual address.
> >
> > Signed-off-by: Long Li <longli@microsoft.com>
>
>
> Fixes: 3f9277031a2e ("bus/vmbus: fix check for mmap failure")
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
+Cc: stable@dpdk.org
Applied, thanks
prev parent reply other threads:[~2020-06-24 23:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-12 0:48 longli
2020-06-12 16:06 ` Stephen Hemminger
2020-06-24 23:05 ` Thomas Monjalon [this message]
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