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Date:   Thu, 4 Jun 2020 21:20:00 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     syzbot <syzbot+833ac95f0a2451d63a9f@...kaller.appspotmail.com>
Cc:     brendanhiggins@...gle.com, dmitry.torokhov@...il.com,
        gregkh@...uxfoundation.org, heikki.krogerus@...ux.intel.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        rafael.j.wysocki@...el.com, rdunlap@...radead.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Read in joydev_cleanup

On Sun, May 24, 2020 at 03:24:12AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    c11d28ab Add linux-next specific files for 20200522
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1587269a100000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=3f6dbdea4159fb66
> dashboard link: https://syzkaller.appspot.com/bug?extid=833ac95f0a2451d63a9f
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1114d626100000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14c4da9a100000
> 
> The bug was bisected to:
> 
> commit 4ef12f7198023c09ad6d25b652bd8748c965c7fa
> Author: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> Date:   Wed May 13 15:18:40 2020 +0000
> 
>     kobject: Make sure the parent does not get released before its children
> 

Commit was reverted.

#syz invalid

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