linux-kernel - [PATCH v2 3/3] net/ipv6: Initialise msg_control_is

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Date:   Thu, 13 Apr 2023 12:47:05 +0100
From:   Kevin Brodsky <kevin.brodsky@....com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Kevin Brodsky <kevin.brodsky@....com>,
        Christoph Hellwig <hch@....de>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH v2 3/3] net/ipv6: Initialise msg_control_is_user

do_ipv6_setsockopt() makes use of struct msghdr::msg_control in the
IPV6_2292PKTOPTIONS case. Make sure to initialise
msg_control_is_user accordingly.

Cc: Christoph Hellwig <hch@....de>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Kevin Brodsky <kevin.brodsky@....com>
---
 net/ipv6/ipv6_sockglue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 2917dd8d198c..ae818ff46224 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -716,6 +716,7 @@ int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			goto done;
 
 		msg.msg_controllen = optlen;
+		msg.msg_control_is_user = false;
 		msg.msg_control = (void *)(opt+1);
 		ipc6.opt = opt;
 
-- 
2.38.1