netdev - Re: [PATCH net-next] liquidio: fix kernel panic in VF driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Sat, 28 Oct 2017 18:53:35 +0900 (KST)
From:   David Miller <davem@...hat.com>
To:     felix.manlunas@...ium.com
Cc:     netdev@...r.kernel.org, raghu.vatsavayi@...ium.com,
        derek.chickles@...ium.com, satananda.burla@...ium.com
Subject: Re: [PATCH net-next] liquidio: fix kernel panic in VF driver

From: Felix Manlunas <felix.manlunas@...ium.com>
Date: Thu, 26 Oct 2017 16:46:36 -0700

> Doing ifconfig down on VF driver in the middle of receiving line rate
> traffic causes a kernel panic:
 ...
> Reason is:  in the function assigned to net_device_ops->ndo_stop, the steps
> for bringing down the interface are done in the wrong order.  The step that
> notifies the NIC firmware to stop forwarding packets to host is done too
> late.  Fix it by moving that step to the beginning.
> 
> Signed-off-by: Felix Manlunas <felix.manlunas@...ium.com>
> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@...ium.com>

Applied, thanks.