linux-kernel - Re: [syzbot] [netfilter?] WARNING: suspicious RCU usage in hash_netportnet6

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Date: Tue, 06 Feb 2024 15:24:05 -0800
From: syzbot <syzbot+bcd44ebc3cd2db18f26c@...kaller.appspotmail.com>
To: 00107082@....com, coreteam@...filter.org, davem@...emloft.net, 
	edumazet@...gle.com, fw@...len.de, justinstitt@...gle.com, 
	kadlec@...filter.org, kuba@...nel.org, kuniyu@...zon.com, 
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
	netfilter-devel@...r.kernel.org, pabeni@...hat.com, pablo@...filter.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [netfilter?] WARNING: suspicious RCU usage in hash_netportnet6_destroy

syzbot has bisected this issue to:

commit 97f7cf1cd80eeed3b7c808b7c12463295c751001
Author: Jozsef Kadlecsik <kadlec@...filter.org>
Date:   Mon Jan 29 09:57:01 2024 +0000

    netfilter: ipset: fix performance regression in swap operation

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15790a38180000
start commit:   021533194476 Kconfig: Disable -Wstringop-overflow for GCC ..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=17790a38180000
console output: https://syzkaller.appspot.com/x/log.txt?x=13790a38180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f204e0b6490f4419
dashboard link: https://syzkaller.appspot.com/bug?extid=bcd44ebc3cd2db18f26c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16329057e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15b8fe7be80000

Reported-by: syzbot+bcd44ebc3cd2db18f26c@...kaller.appspotmail.com
Fixes: 97f7cf1cd80e ("netfilter: ipset: fix performance regression in swap operation")

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