netdev - Re: [PATCH V2 net 1/1] hv_netvsc: Fix a bug in netvsc_start

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:	Wed, 29 Apr 2015 15:21:26 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	kys@...rosoft.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	jasowang@...hat.com
Subject: Re: [PATCH V2 net 1/1] hv_netvsc: Fix a bug in netvsc_start_xmit()

From: "K. Y. Srinivasan" <kys@...rosoft.com>
Date: Tue, 28 Apr 2015 17:59:48 -0700

> Commit b08cc79155fc26d0d112b1470d1ece5034651a4b eliminated memory
> allocation in the packet send path:
> 
>     "hv_netvsc: Eliminate memory allocation in the packet send path
> 
>     The network protocol used to communicate with the host is the remote ndis (rndis)
>     protocol. We need to decorate each outgoing packet with a rndis header and
>     additional rndis state (rndis per-packet state). To manage this state, we
>     currently allocate memory in the transmit path. Eliminate this allocation by
>     requesting additional head room in the skb."
> 
> This commit introduced a bug since it did not account for the case if the skb
> was cloned. Fix this bug.
> 
> Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>

Applied, thanks.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html