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

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Message-ID: <695b8b29.050a0220.1c9965.002c.GAE@google.com>
Date: Mon, 05 Jan 2026 01:58:01 -0800
From: syzbot <syzbot+a56aa983ce6a1bf12485@...kaller.appspotmail.com>
To: abbotti@....co.uk, dakr@...nel.org, eadavis@...com, 
	gregkh@...uxfoundation.org, hdanton@...a.com, hsweeten@...ionengravers.com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	rafael@...nel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in driver_remove_file

syzbot suspects this issue was fixed by commit:

commit 72262330f7b3ad2130e800cecf02adcce3c32c77
Author: Ian Abbott <abbotti@....co.uk>
Date:   Thu Oct 23 12:31:41 2025 +0000

    comedi: c6xdigio: Fix invalid PNP driver unregistration

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13622e9a580000
start commit:   3b08f56fbbb9 Merge tag 'x86-urgent-2025-09-20' of git://gi..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=8f01d8629880e620
dashboard link: https://syzkaller.appspot.com/bug?extid=a56aa983ce6a1bf12485
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15571534580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=152f7e42580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: comedi: c6xdigio: Fix invalid PNP driver unregistration

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