linux-kernel - Re: [PATCH net] hv_netvsc: Reset the RSC count if NVSP_STAT_FAIL in netvsc

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Date:   Wed, 3 Feb 2021 15:25:40 -0800
From:   Jesse Brandeburg <jesse.brandeburg@...el.com>
To:     "Andrea Parri (Microsoft)" <parri.andrea@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        "K . Y . Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>,
        Michael Kelley <mikelley@...rosoft.com>,
        linux-hyperv@...r.kernel.org,
        Saruhan Karademir <skarade@...rosoft.com>,
        Juan Vazquez <juvazq@...rosoft.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: Re: [PATCH net] hv_netvsc: Reset the RSC count if NVSP_STAT_FAIL in
 netvsc_receive()

Andrea Parri (Microsoft) wrote:

> Commit 44144185951a0f ("hv_netvsc: Add validation for untrusted Hyper-V
> values") added validation to rndis_filter_receive_data() (and
> rndis_filter_receive()) which introduced NVSP_STAT_FAIL-scenarios where
> the count is not updated/reset.  Fix this omission, and prevent similar
> scenarios from occurring in the future.
> 
> Reported-by: Juan Vazquez <juvazq@...rosoft.com>
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@...il.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: netdev@...r.kernel.org
> Fixes: 44144185951a0f ("hv_netvsc: Add validation for untrusted Hyper-V values")

Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>