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

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Message-ID: <67f1946e.050a0220.0a13.024a.GAE@google.com>
Date: Sat, 05 Apr 2025 13:37:02 -0700
From: syzbot <syzbot+2deb10b8dc9aae6fab67@...kaller.appspotmail.com>
To: kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] KASAN: slab-use-after-free Read in bchfs_read

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:         56f94452 Merge tag 'input-for-v6.15-rc0' of git://git...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1299e23f980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=695196aa2bd08d99
dashboard link: https://syzkaller.appspot.com/bug?extid=2deb10b8dc9aae6fab67
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16d32b4c580000