linux-kernel - Re: [syzbot] [net?] KASAN: slab-use-after-free Read in napi_gro

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Message-ID: <68ca20eb.050a0220.2ff435.04ad.GAE@google.com>
Date: Tue, 16 Sep 2025 19:46:03 -0700
From: syzbot <syzbot+64e24275ad95a915a313@...kaller.appspotmail.com>
To: davem@...emloft.net, edumazet@...gle.com, hawk@...nel.org, 
	horms@...nel.org, kuba@...nel.org, linux-kernel@...r.kernel.org, 
	lorenzo@...nel.org, netdev@...r.kernel.org, pabeni@...hat.com, 
	syzkaller-bugs@...glegroups.com, toke@...hat.com, wangliang74@...wei.com, 
	yuehaibing@...wei.com
Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Read in napi_gro_frags (2)

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to apply patch:
checking file drivers/net/tun.c
Hunk #1 FAILED at 1875.
1 out of 1 hunk FAILED

Tested on:

commit:         5e87fdc3 Merge tag 'batadv-next-pullrequest-20250916' ..
git tree:       net-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=a6c33a7db07dbea2
dashboard link: https://syzkaller.appspot.com/bug?extid=64e24275ad95a915a313
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14240c7c580000