netdev - Re: [syzbot] [net?] INFO: task hung in lock_sock

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Message-ID: <20250108110457.1514-1-hdanton@sina.com>
Date: Wed,  8 Jan 2025 19:04:56 +0800
From: Hillf Danton <hdanton@...a.com>
To: syzbot <syzbot+6ac73b3abf1b598863fa@...kaller.appspotmail.com>
Cc: Sabrina Dubroca <sd@...asysnail.net>,
	borisp@...dia.com,
	edumazet@...gle.com,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	pabeni@...hat.com,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] INFO: task hung in lock_sock_nested (5)

On 2024-12-26, 01:34:19 -0800, syzbot wrote:
> syzbot found the following issue on:
> 
> HEAD commit:    9268abe611b0 Merge branch 'net-lan969x-add-rgmii-support'
> git tree:       net-next
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=155c0018580000

Test Sabrina's patch.

#syz test

--- x/net/tls/tls_main.c
+++ y/net/tls/tls_main.c
@@ -737,6 +737,8 @@ static int do_tls_setsockopt_conf(struct
 	else
 		ctx->rx_conf = conf;
 	update_sk_prot(sk, ctx);
+	if (update)
+		return 0;
 	if (tx) {
 		ctx->sk_write_space = sk->sk_write_space;
 		sk->sk_write_space = tls_write_space;
--