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authorLi RongQing <roy.qing.li@gmail.com>2014-05-22 16:36:55 +0800
committerJiri Slaby <jslaby@suse.cz>2014-05-29 11:49:33 +0200
commitee08bba5f0f2c32f12a465542ad4b6a42c4a1417 (patch)
treef11239068dff658426a4d58b433b3565143eda51 /net
parent9b60fabbe9b3577f82c8b9519c3cb351763b7d89 (diff)
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: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/route.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index ae8aadbbb3c7..2b681867164d 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1525,7 +1525,7 @@ 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));