ipv4: make ip_append_data() handle NULL routing table
commit72b57bef7b0e7e3bae7ef607a05435d8fa115c31
authorJulien TINNES <julien@cr0.org>
Thu, 27 Aug 2009 13:26:58 +0000 (27 15:26 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 9 Sep 2009 03:34:04 +0000 (8 20:34 -0700)
treefd6b146f6cabba649ab206ea6abb9559da0dba24
parent36c32cab609e449a3b9fbb0543717799a287eb63
ipv4: make ip_append_data() handle NULL routing table

commit 788d908f2879a17e5f80924f3da2e23f1034482d upstream.

Add a check in ip_append_data() for NULL *rtp to prevent future bugs in
callers from being exploitable.

Signed-off-by: Julien Tinnes <julien@cr0.org>
Signed-off-by: Tavis Ormandy <taviso@sdf.lonestar.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
net/ipv4/ip_output.c