diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-07-01 20:40:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-04 09:34:55 +0200 |
| commit | 2eb5ddc2bf38e2a2b9ec461ab18d91b43d9f8d93 (patch) | |
| tree | 4d0f29e982a8a1d2982e87f3f5f968dcd43703f8 /include/linux | |
| parent | 364e03f191205642630a02eaeaabdb87900a5bc7 (diff) | |
bonding: validate ip header before check IPPROTO_IGMP
[ Upstream commit 9d1bc24b52fb8c5d859f9a47084bf1179470e04c ]
bond_xmit_roundrobin() checks for IGMP packets but it parses
the IP header even before checking skb->protocol.
We should validate the IP header with pskb_may_pull() before
using iph->protocol.
Reported-and-tested-by: syzbot+e5be16aa39ad6e755391@syzkaller.appspotmail.com
Fixes: a2fd940f4cff ("bonding: fix broken multicast with round-robin mode")
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions