Re: [PATCH] ipv4, ipv6: ensure raw socket message is big enough to hold an IP header

From: David Miller
Date: Thu May 04 2017 - 11:09:00 EST

From: Alexander Potapenko <glider@xxxxxxxxxx>
Date: Wed, 3 May 2017 17:06:58 +0200

> raw_send_hdrinc() and rawv6_send_hdrinc() expect that the buffer copied
> from the userspace contains the IPv4/IPv6 header, so if too few bytes are
> copied, parts of the header may remain uninitialized.
> This bug has been detected with KMSAN.
> Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx>

Applied and queued up for -stable, thanks.