Subject: [PATCH 24/39] net: ipmr: fix unresolved entry dumps

From: Nikolay Aleksandrov <[email-masked]>
Date: Wed, 17 Oct 2018 22:34:34 +0300

[ Upstream commit eddf016b910486d2123675a6b5fd7d64f77cdca8 ]

If the skb space ends in an unresolved entry while dumping we'll miss
some unresolved entries. The reason is due to zeroing the entry counter
between dumping resolved and unresolved mfc entries. We should just
keep counting until the whole table is dumped and zero when we move to
the next as we have a separate table counter.

Reported-by: Colin Ian King <[email-masked]>
Fixes: 8fb472c09b9d ("ipmr: improve hash scalability")
Signed-off-by: Nikolay Aleksandrov <[email-masked]>
Signed-off-by: David S. Miller <[email-masked]>
---
 net/ipv4/ipmr_base.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/ipmr_base.c b/net/ipv4/ipmr_base.c
index cafb0506c8c9..33be09791c74 100644
--- a/net/ipv4/ipmr_base.c
+++ b/net/ipv4/ipmr_base.c
@@ -295,8 +295,6 @@ int mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb,
 next_entry:
 			e++;
 		}
-		e = 0;
-		s_e = 0;
 
 		spin_lock_bh(lock);
 		list_for_each_entry(mfc, &mrt->mfc_unres_queue, list) {
-- 
2.19.1