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From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Yuan Linsi <yuanlinsi01@baidu.com>,
	Somnath Kotur <somnath.kotur@broadcom.com>,
	 Lance Richardson <lance.richardson@broadcom.com>,
	dpdk-dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/bnxt: fix a possible stack smashing
Date: Mon, 4 May 2020 20:42:20 -0700
Message-ID: <CACZ4nhsXp9=URHjLkuNsP3aUqQjWXg4axdFkAtOEGjSjhYN-fA@mail.gmail.com> (raw)
In-Reply-To: <9171fcaf-8ffb-47e7-621e-9f4066cf8e1d@intel.com>

On Thu, Apr 30, 2020 at 4:55 PM Ferruh Yigit <ferruh.yigit@intel.com> wrote:

> On 4/30/2020 2:37 PM, Yuan Linsi wrote:
> > From: yuanlinsi01 <yuanlinsi01@baidu.com>
> >
> > We see a stack smashing as a result of defensive code missing. Once the
> > nb_pkts is less than RTE_BNXT_DESCS_PER_LOOP, it will be modified to
> > zero after doing a floor align, and we can not exit the following
> > receiving packets loop. And the buffers will be overwrite, then the
> > stack frame was ruined.
> >
> > Fix the problem by adding defensive code, once the nb_pkts is zero, just
> > directly return with no packets.
> >
> > Fixes: bc4a000f2 ("net/bnxt: implement SSE vector mode")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: yuanlinsi01 <yuanlinsi01@baidu.com>
> > Signed-off-by: rongdongsheng <rongdongsheng@baidu.com>
>
> Hi Yuan,
>
> For the sign-off tag, we need "Name Surname <email@adress.com>" syntax,
> for you I can see from mail thread that it is:
>  "Signed-off-by: Linsi Yuan <yuanlinsi01@baidu.com>"
>
> Can you please share the same for the other sign-off, 'rongdongsheng'?
>
Yuan, Can you please send the proper first-name, last-name
for rongdongsheng? Thanks

  reply	other threads:[~2020-05-05  3:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-30 13:37 Yuan Linsi
2020-04-30 13:45 ` Lance Richardson
2020-04-30 18:29   ` Ajit Khaparde
2020-04-30 23:55 ` Ferruh Yigit
2020-05-05  3:42   ` Ajit Khaparde [this message]
2020-05-06  3:18     ` [dpdk-dev] 答复: " Yuan,Linsi
  -- strict thread matches above, loose matches on Subject: below --
2020-05-06  3:28 [dpdk-dev] " Yuan Linsi
2020-05-06  5:26 ` Ajit Khaparde
2020-05-06  3:18 Yuan Linsi
2020-04-30 12:05 yuanlinsi01
2020-04-30 12:55 ` Somnath Kotur
2020-04-30 13:33   ` [dpdk-dev] 答复: " Yuan,Linsi
2020-04-30 10:08 [dpdk-dev] " yuanlinsi01
2020-04-30 10:07 yuanlinsi01

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