netdev - Re: [PATCH net] net: ping: do not abuse udp

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Message-Id: <20170604.225817.1212735449685985957.davem@davemloft.net>
Date:   Sun, 04 Jun 2017 22:58:17 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     edumazet@...gle.com, lorenzo@...gle.com, segoon@...nwall.com,
        solar@...nwall.com, alexander.levin@...izon.com, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: ping: do not abuse udp_poll()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 03 Jun 2017 09:29:25 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Alexander reported various KASAN messages triggered in recent kernels 
> 
> The problem is that ping sockets should not use udp_poll() in the first
> place, and recent changes in UDP stack finally exposed this old bug.
> 
> Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
> Fixes: 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: Sasha Levin <alexander.levin@...izon.com>

Applied and queued up for -stable.