netdev - Re: [syzbot] [virt?] [netfilter?] INFO: rcu detected stall in ip_list

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Message-ID: <66e5b5d1.050a0220.115905.0008.GAE@google.com>
Date: Sat, 14 Sep 2024 09:12:01 -0700
From: syzbot <syzbot+45b67ef6e09a39a2cbcd@...kaller.appspotmail.com>
To: davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com, 
	jhs@...atatu.com, jiri@...nulli.us, kadlec@...filter.org, kuba@...nel.org, 
	lenb@...nel.org, linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org, 
	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org, pabeni@...hat.com, 
	pablo@...filter.org, rjw@...ysocki.net, syzkaller-bugs@...glegroups.com, 
	vinicius.gomes@...el.com, virtualization@...ts.linux.dev, 
	vladimir.oltean@....com, xiyou.wangcong@...il.com
Subject: Re: [syzbot] [virt?] [netfilter?] INFO: rcu detected stall in
 ip_list_rcv (6)

syzbot suspects this issue was fixed by commit:

commit e634134180885574d1fe7aa162777ba41e7fcd5b
Author: Vladimir Oltean <vladimir.oltean@....com>
Date:   Mon May 27 15:39:54 2024 +0000

    net/sched: taprio: make q->picos_per_byte available to fill_sched_entry()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17264407980000
start commit:   753c8608f3e5 Merge tag 'for-netdev' of https://git.kernel...
git tree:       net-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=f8715b6ede5c4b90
dashboard link: https://syzkaller.appspot.com/bug?extid=45b67ef6e09a39a2cbcd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15abc0e2e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10b0c7c2e80000

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

#syz fix: net/sched: taprio: make q->picos_per_byte available to fill_sched_entry()

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