netdev - Re: KASAN: use-after-free Read in devlink_health_reporter

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Message-ID: <20200714093628.GA274556@shredder>
Date:   Tue, 14 Jul 2020 12:36:28 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     syzbot <syzbot+dd0040db0d77d52f98a5@...kaller.appspotmail.com>
Cc:     davem@...emloft.net, jiri@...lanox.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Read in devlink_health_reporter_destroy

On Mon, Jul 13, 2020 at 03:55:21PM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    71930d61 Merge git://git.kernel.org/pub/scm/linux/kernel/g..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=10c8d157100000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=4c5bc87125719cf4
> dashboard link: https://syzkaller.appspot.com/bug?extid=dd0040db0d77d52f98a5
> compiler:       gcc (GCC) 10.1.0-syz 20200507
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1421cd3f100000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13ccfe4f100000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+dd0040db0d77d52f98a5@...kaller.appspotmail.com

#syz fix: devlink: Fix use-after-free when destroying health reporters