linux-kernel - Re: [syzbot] [kernel?] KASAN: slab-use-after-free Write in binder_remove

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Message-ID: <68327a56.a70a0220.29d4a0.07fc.GAE@google.com>
Date: Sat, 24 May 2025 19:03:02 -0700
From: syzbot <syzbot+4af454407ec393de51d6@...kaller.appspotmail.com>
To: aliceryhl@...gle.com, arve@...roid.com, brauner@...nel.org, 
	cmllamas@...gle.com, dualli@...gle.com, gregkh@...uxfoundation.org, 
	joel@...lfernandes.org, joelagnelf@...dia.com, kernel-team@...roid.com, 
	linux-kernel@...r.kernel.org, maco@...roid.com, stable@...r.kernel.org, 
	surenb@...gle.com, syzkaller-bugs@...glegroups.com, tkjos@...roid.com
Subject: Re: [syzbot] [kernel?] KASAN: slab-use-after-free Write in binder_remove_device

syzbot has bisected this issue to:

commit 12d909cac1e1c4147cc3417fee804ee12fc6b984
Author: Li Li <dualli@...gle.com>
Date:   Wed Dec 18 21:29:34 2024 +0000

    binderfs: add new binder devices to binder_devices

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=107228e8580000
start commit:   176e917e010c Add linux-next specific files for 20250523
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=127228e8580000
console output: https://syzkaller.appspot.com/x/log.txt?x=147228e8580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e7902c752bef748
dashboard link: https://syzkaller.appspot.com/bug?extid=4af454407ec393de51d6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=108b55f4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1145e5f4580000

Reported-by: syzbot+4af454407ec393de51d6@...kaller.appspotmail.com
Fixes: 12d909cac1e1 ("binderfs: add new binder devices to binder_devices")

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