diff options
| author | Li RongQing <roy.qing.li@gmail.com> | 2014-05-22 16:36:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-31 13:20:39 -0700 |
| commit | 242339a25ed829432d99e6571d170b308432ed55 (patch) | |
| tree | 4f68295fc2d3e3ce4f903070328f8832a7f7fe68 | |
| parent | ff9cfa6b917a903fe24dba928dca61d0c9339864 (diff) | |
| download | kernel-common-242339a25ed829432d99e6571d170b308432ed55.tar.gz kernel-common-242339a25ed829432d99e6571d170b308432ed55.tar.bz2 kernel-common-242339a25ed829432d99e6571d170b308432ed55.zip | |
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>
| -rw-r--r-- | net/ipv4/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index db66057b9d13..134437309b1e 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1526,7 +1526,7 @@ static int __mkroute_input(struct sk_buff *skb, struct in_device *out_dev; unsigned int flags = 0; bool do_cache; - u32 itag; + u32 itag = 0; /* get a working reference to the output device */ out_dev = __in_dev_get_rcu(FIB_RES_DEV(*res)); |