From: Stefano Brivio <sbrivio@redhat.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Jianlin Shi <jishi@redhat.com>,
Hangbin Liu <liuhangbin@gmail.com>,
Eric Dumazet <edumazet@google.com>,
Stephen Hemminger <stephen@networkplumber.org>,
netdev@vger.kernel.org
Subject: [PATCH net 0/2] Fix slab out-of-bounds on insufficient headroom for IPv6 packets
Date: Wed, 5 Dec 2018 01:13:49 +0100 [thread overview]
Message-ID: <cover.1543967847.git.sbrivio@redhat.com> (raw)
Patch 1/2 fixes a slab out-of-bounds occurring with short SCTP packets over
IPv4 over L2TP over IPv6 on a configuration with relatively low HEADER_MAX.
Patch 2/2 makes sure we panic in neigh_hh_output() instead of silently
writing before the allocated buffer in case the headroom is enough for the
unaligned hardware header size, but not enough for the aligned one.
Stefano Brivio (2):
ipv6: Check available headroom in ip6_xmit() even without options
neighbour: BUG_ON() writing before skb->head in neigh_hh_output()
include/net/neighbour.h | 8 ++++++--
net/ipv6/ip6_output.c | 42 ++++++++++++++++++++---------------------
2 files changed, 27 insertions(+), 23 deletions(-)
--
2.19.2
next reply other threads:[~2018-12-05 0:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-05 0:13 Stefano Brivio [this message]
2018-12-05 0:13 ` [PATCH net 1/2] ipv6: Check available headroom in ip6_xmit() even without options Stefano Brivio
2018-12-05 0:13 ` [PATCH net 2/2] neighbour: BUG_ON() writing before skb->head in neigh_hh_output() Stefano Brivio
[not found] ` <CANn89i+VoX7LNq4uGztJvH3EVzbE=Rhab=erkCOzHo3xyWBExg@mail.gmail.com>
2018-12-05 0:38 ` Stefano Brivio
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