linux-kernel - Re: [syzbot] [ext4?] [overlayfs?] WARNING in file_seek_cur_needs_f

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Message-ID: <67f3dc05.050a0220.107db6.059d.GAE@google.com>
Date: Mon, 07 Apr 2025 07:07:01 -0700
From: syzbot <syzbot+4036165fc595a74b09b2@...kaller.appspotmail.com>
To: adilger.kernel@...ger.ca, amir73il@...il.com, linux-ext4@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-unionfs@...r.kernel.org, 
	miklos@...redi.hu, syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ext4?] [overlayfs?] WARNING in file_seek_cur_needs_f_lock

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
unregister_netdevice: waiting for DEV to become free

unregister_netdevice: waiting for batadv0 to become free. Usage count = 3


Tested on:

commit:         0af2f6be Linux 6.15-rc1
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git v6.15-rc1
console output: https://syzkaller.appspot.com/x/log.txt?x=123c0070580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bae073f4634b7fd
dashboard link: https://syzkaller.appspot.com/bug?extid=4036165fc595a74b09b2
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=151deb4c580000