tree 507526b7b4f3a6bd6fae6fa2b9d28984abf57ad5
parent c846b197e10f5f5985bc946e2640f4bc3fa324a1
author Li RongQing <roy.qing.li@gmail.com> 1400747815 +0800
committer chrmhoffmann <chrmhoffmann@gmail.com> 1586074802 +0200

ipv4: initialise the itag variable in __mkroute_input

[ Upstream commit fbdc0ad095c0a299e9abf5d8ac8f58374951149a ]

the value of itag is a random value from stack, and may not be initiated by
fib_validate_source, which called fib_combine_itag if CONFIG_IP_ROUTE_CLASSID
is not set

This will make the cached dst uncertainty

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>