linux-kernel - Re: [syzbot] [net?] kernel BUG in set

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Message-ID: <68f22010.050a0220.91a22.041c.GAE@google.com>
Date: Fri, 17 Oct 2025 03:53:04 -0700
From: syzbot <syzbot+be97dd4da14ae88b6ba4@...kaller.appspotmail.com>
To: alexanderduyck@...com, chuck.lever@...cle.com, davem@...emloft.net, 
	edumazet@...gle.com, herbert@...dor.apana.org.au, horms@...nel.org, 
	kuba@...nel.org, linux-kernel@...r.kernel.org, linyunsheng@...wei.com, 
	netdev@...r.kernel.org, pabeni@...hat.com, steffen.klassert@...unet.com, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] kernel BUG in set_ipsecrequest

syzbot has bisected this issue to:

commit 14ad6ed30a10afbe91b0749d6378285f4225d482
Author: Paolo Abeni <pabeni@...hat.com>
Date:   Tue Feb 18 18:29:39 2025 +0000

    net: allow small head cache usage with large MAX_SKB_FRAGS values

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=177a35e2580000
start commit:   48a97ffc6c82 bpf: Consistently use bpf_rcu_lock_held() eve..
git tree:       bpf-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=14fa35e2580000
console output: https://syzkaller.appspot.com/x/log.txt?x=10fa35e2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9ad7b090a18654a7
dashboard link: https://syzkaller.appspot.com/bug?extid=be97dd4da14ae88b6ba4
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16f7e5e2580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11ecec58580000

Reported-by: syzbot+be97dd4da14ae88b6ba4@...kaller.appspotmail.com
Fixes: 14ad6ed30a10 ("net: allow small head cache usage with large MAX_SKB_FRAGS values")

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