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From: Kevin Brodsky <kevin.brodsky@arm.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
	Kevin Brodsky <kevin.brodsky@arm.com>,
	Christoph Hellwig <hch@lst.de>,
	Eric Dumazet <edumazet@google.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH v2 3/3] net/ipv6: Initialise msg_control_is_user
Date: Thu, 13 Apr 2023 12:47:05 +0100	[thread overview]
Message-ID: <20230413114705.157046-4-kevin.brodsky@arm.com> (raw)
In-Reply-To: <20230413114705.157046-1-kevin.brodsky@arm.com>

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@lst.de>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.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


  parent reply	other threads:[~2023-04-13 11:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-13 11:47 [PATCH v2 0/3] net: Finish up ->msg_control{,_user} split Kevin Brodsky
2023-04-13 11:47 ` [PATCH v2 1/3] net: Ensure ->msg_control_user is used for user buffers Kevin Brodsky
2023-04-13 14:08   ` Christoph Hellwig
2023-04-13 11:47 ` [PATCH v2 2/3] net/compat: Update msg_control_is_user when setting a kernel pointer Kevin Brodsky
2023-04-13 14:07   ` Christoph Hellwig
2023-04-13 11:47 ` Kevin Brodsky [this message]
2023-04-13 14:07   ` [PATCH v2 3/3] net/ipv6: Initialise msg_control_is_user Christoph Hellwig
2023-04-14 10:30 ` [PATCH v2 0/3] net: Finish up ->msg_control{,_user} split patchwork-bot+netdevbpf

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