linux-kernel - Re: [syzbot] [net?] possible deadlock in do_ip

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Message-ID: <6837a3c0.a70a0220.1765ec.017e.GAE@google.com>
Date: Wed, 28 May 2025 17:01:04 -0700
From: syzbot <syzbot+e4c27043b9315839452d@...kaller.appspotmail.com>
To: alibuda@...ux.alibaba.com, davem@...emloft.net, dsahern@...nel.org, 
	dust.li@...ux.alibaba.com, edumazet@...gle.com, horms@...nel.org, 
	kuba@...nel.org, kuniyu@...zon.com, linux-kernel@...r.kernel.org, 
	lkp@...el.com, netdev@...r.kernel.org, oe-lkp@...ts.linux.dev, 
	oliver.sang@...el.com, pabeni@...hat.com, schnelle@...ux.ibm.com, 
	srikarananta01@...il.com, syzkaller-bugs@...glegroups.com, 
	wenjia@...ux.ibm.com
Subject: Re: [syzbot] [net?] possible deadlock in do_ip_setsockopt (4)

syzbot suspects this issue was fixed by commit:

commit 752e2217d789be2c6a6ac66554b981cd71cd9f31
Author: Kuniyuki Iwashima <kuniyu@...zon.com>
Date:   Mon Apr 7 17:03:17 2025 +0000

    smc: Fix lockdep false-positive for IPPROTO_SMC.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17cd6bf4580000
start commit:   88d324e69ea9 Merge tag 'spi-fix-v6.14-rc7' of git://git.ke..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=27515cfdbafbb90d
dashboard link: https://syzkaller.appspot.com/bug?extid=e4c27043b9315839452d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12b13e98580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=131d9c4c580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: smc: Fix lockdep false-positive for IPPROTO_SMC.

For information about bisection process see: https://goo.gl/tpsmEJ#bisection