netdev - Re: [syzbot] [net?] KASAN: slab-use-after-free Write in __xfrm_state

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Message-ID: <68b00451.a00a0220.1337b0.0003.GAE@google.com>
Date: Thu, 28 Aug 2025 00:25:05 -0700
From: syzbot <syzbot+a25ee9d20d31e483ba7b@...kaller.appspotmail.com>
To: davem@...emloft.net, eadavis@...com, edumazet@...gle.com, hdanton@...a.com, 
	herbert@...dor.apana.org.au, horms@...nel.org, kuba@...nel.org, 
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com, 
	saakashkumar@...vell.com, sd@...asysnail.net, steffen.klassert@...unet.com, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Write in __xfrm_state_delete

syzbot has bisected this issue to:

commit 94f39804d891cffe4ce17737d295f3b195bc7299
Author: Aakash Kumar S <saakashkumar@...vell.com>
Date:   Mon Jun 30 12:38:56 2025 +0000

    xfrm: Duplicate SPI Handling

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17d07c42580000
start commit:   b1c92cdf5af3 Merge branch 'net-wangxun-complete-ethtool-co..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=14307c42580000
console output: https://syzkaller.appspot.com/x/log.txt?x=10307c42580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=67b99ceb67d33475
dashboard link: https://syzkaller.appspot.com/bug?extid=a25ee9d20d31e483ba7b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14221862580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=159fba34580000

Reported-by: syzbot+a25ee9d20d31e483ba7b@...kaller.appspotmail.com
Fixes: 94f39804d891 ("xfrm: Duplicate SPI Handling")

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