netdev - [PATCH] fix noderef.cocci warnings

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Message-ID: <20190702033311.GA22487@lkp-kbuild12>
Date:   Tue, 2 Jul 2019 11:33:11 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Cc:     kbuild-all@...org, Martin Weinelt <martin@...uxlounge.net>,
        bridge@...ts.linux-foundation.org,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        netdev@...r.kernel.org
Subject: [PATCH] fix noderef.cocci warnings

From: kbuild test robot <lkp@...el.com>

net/bridge/br_multicast.c:999:8-14: ERROR: application of sizeof to pointer

 sizeof when applied to a pointer typed expression gives the size of
 the pointer

Generated by: scripts/coccinelle/misc/noderef.cocci

Fixes: 17c91348ed8b ("Use-after-free in br_multicast_rcv")
CC: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Signed-off-by: kbuild test robot <lkp@...el.com>
---

url:    https://github.com/0day-ci/linux/commits/Nikolay-Aleksandrov/net-bridge-mcast-fix-possible-uses-of-stale-pointers/20190702-083354

 br_multicast.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -996,7 +996,7 @@ static int br_ip6_multicast_mld2_report(
 			return -EINVAL;
 
 		_nsrcs = skb_header_pointer(skb, nsrcs_offset,
-					   sizeof(_nsrcs), &__nsrcs);
+					   sizeof(*_nsrcs), &__nsrcs);
 		if (!_nsrcs)
 			return -EINVAL;