Re: [syzbot] [netfilter?] WARNING: suspicious RCU usage in hash_netportnet6_destroy

syzbot
2024-02-06T23:24:05Z

syzbot has bisected this issue to:

commit 97f7cf1cd80eeed3b7c808b7c12463295c751001
Author: Jozsef Kadlecsik <kadlec@netfilter.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@syzkaller.appspotmail.com
Fixes: 97f7cf1cd80e ("netfilter: ipset: fix performance regression in swap operation")

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