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authorCong Wang <xiyou.wangcong@gmail.com>2019-07-02 06:40:24 +0300
committerDavid S. Miller <davem@davemloft.net>2019-07-03 23:26:12 +0300
commit9d1bc24b52fb8c5d859f9a47084bf1179470e04c (patch)
treeecc9fb47b451a8795412aa1937ebf8e16f26a3a4 /net/xfrm
parentc3ead2df9776ab22490d78a7f68a8ec58700e07f (diff)
downloadlinux-9d1bc24b52fb8c5d859f9a47084bf1179470e04c.tar.xz
bonding: validate ip header before check IPPROTO_IGMP
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>
Diffstat (limited to 'net/xfrm')
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