ipv4: Missing sk_nulls_node_init() in ping_unhash().
authorDavid S. Miller <davem@davemloft.net>
Sat, 2 May 2015 02:02:47 +0000 (22:02 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 11 May 2015 12:34:02 +0000 (05:34 -0700)
commit61815444fa0b437cd2b7a2be781a10773801e72e
treecae27da63d790b8c1df37cef106938ba673f81c4
parent27bf80e8dcc3b082182ded6b481af9eb40bffbdb
ipv4: Missing sk_nulls_node_init() in ping_unhash().

[ Upstream commit a134f083e79fb4c3d0a925691e732c56911b4326 ]

If we don't do that, then the poison value is left in the ->pprev
backlink.

This can cause crashes if we do a disconnect, followed by a connect().

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Wen Xu <hotdog3645@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv4/ping.c