linux-kernel - Re: [syzbot] [netfs?] INFO: task hung in netfs_unbuffered_write

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <67e6a8ce.050a0220.2f068f.0077.GAE@google.com>
Date: Fri, 28 Mar 2025 06:49:02 -0700
From: syzbot <syzbot+62262fdc0e01d99573fc@...kaller.appspotmail.com>
To: asmadeus@...ewreck.org, brauner@...nel.org, dhowells@...hat.com, 
	ericvh@...nel.org, jack@...e.cz, jlayton@...nel.org, kprateek.nayak@....com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux_oss@...debyte.com, lucho@...kov.net, mjguzik@...il.com, 
	netfs@...ts.linux.dev, oleg@...hat.com, swapnil.sapkal@....com, 
	syzkaller-bugs@...glegroups.com, v9fs@...ts.linux.dev, 
	viro@...iv.linux.org.uk
Subject: Re: [syzbot] [netfs?] INFO: task hung in netfs_unbuffered_write_iter

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:         acb4f337 Merge tag 'm68knommu-for-v6.15' of git://git...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16bab804580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=95c3bbe7ce8436a7
dashboard link: https://syzkaller.appspot.com/bug?extid=62262fdc0e01d99573fc
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=146b9bb0580000