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

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Message-ID: <Z4Uo20hujg8JQN3f@google.com>
Date: Mon, 13 Jan 2025 14:53:15 +0000
From: Carlos Llamas <cmllamas@...gle.com>
To: syzbot <syzbot+9ba7a8cdae0440edd57b@...kaller.appspotmail.com>
Cc: aardelean@...libre.com, aliceryhl@...gle.com, arve@...roid.com,
	brauner@...nel.org, gregkh@...uxfoundation.org, hdanton@...a.com,
	joel@...lfernandes.org, jonathan.cameron@...wei.com,
	linux-kernel@...r.kernel.org, maco@...roid.com, nuno.sa@...log.com,
	surenb@...gle.com, syzkaller-bugs@...glegroups.com,
	tkjos@...roid.com
Subject: Re: [syzbot] [kernel?] KASAN: slab-use-after-free Read in
 binder_release_work

On Sat, Jan 11, 2025 at 02:45:04PM -0800, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 7e20434cbca814cb91a0a261ca0106815ef48e5f
> Author: Carlos Llamas <cmllamas@...gle.com>
> Date:   Thu Sep 26 23:36:14 2024 +0000
> 
>     binder: fix freeze UAF in binder_release_work()
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1380f218580000
> start commit:   3e5e6c9900c3 Merge tag 'nfsd-6.12-3' of git://git.kernel.o..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=cf5329baa0b5a257
> dashboard link: https://syzkaller.appspot.com/bug?extid=9ba7a8cdae0440edd57b
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1245faa7980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=105db630580000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
> 
> #syz fix: binder: fix freeze UAF in binder_release_work()
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: binder: fix freeze UAF in binder_release_work()