From: Ben Pfaff <blp@nicira.com>
Date: Wed, 29 Dec 2010 06:23:43 +0000 (-0800)
Subject: multipath: Zero padding bytes in fields before hashing.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7cfb3c26b2abb82e95bbecaaf78317e7e7e343d4;p=openvswitch

multipath: Zero padding bytes in fields before hashing.

Otherwise the hash includes 3 bytes of trailing indeterminate data.

Reported-by: Pankaj Thakkar <thakkar@nicira.com>
---

diff --git a/lib/multipath.c b/lib/multipath.c
index 7d4b541e..13f88ff0 100644
--- a/lib/multipath.c
+++ b/lib/multipath.c
@@ -99,6 +99,7 @@ hash_symmetric_l4(const struct flow *flow, uint16_t basis)
 
     int i;
 
+    memset(&fields, 0, sizeof fields);
     for (i = 0; i < ETH_ADDR_LEN; i++) {
         fields.eth_addr[i] = flow->dl_src[i] ^ flow->dl_dst[i];
     }