linux-kernel - [PATCH AUTOSEL 4.19 174/219] net/core/neighbour: fix kmemleak minimal reference count for hash tables

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Message-Id: <20191122054911.1750-167-sashal@kernel.org>
Date:   Fri, 22 Nov 2019 00:48:26 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        Cong Wang <xiyou.wangcong@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 174/219] net/core/neighbour: fix kmemleak minimal reference count for hash tables

From: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>

[ Upstream commit 01b833ab44c9e484060aad72267fc7e71beb559b ]

This should be 1 for normal allocations, 0 disables leak reporting.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
Reported-by: Cong Wang <xiyou.wangcong@...il.com>
Fixes: 85704cb8dcfd ("net/core/neighbour: tell kmemleak about hash tables")
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/core/neighbour.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 4721793babed5..7597afee70680 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -370,7 +370,7 @@ static struct neigh_hash_table *neigh_hash_alloc(unsigned int shift)
 		buckets = (struct neighbour __rcu **)
 			  __get_free_pages(GFP_ATOMIC | __GFP_ZERO,
 					   get_order(size));
-		kmemleak_alloc(buckets, size, 0, GFP_ATOMIC);
+		kmemleak_alloc(buckets, size, 1, GFP_ATOMIC);
 	}
 	if (!buckets) {
 		kfree(ret);
-- 
2.20.1