linux-kernel - Re: WARNING in nsim_fib6_rt_nh

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Message-ID: <20200130110242.GA108853@splinter>
Date:   Thu, 30 Jan 2020 13:02:42 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     syzbot <syzbot+63abe9d5f32ff88090eb@...kaller.appspotmail.com>
Cc:     davem@...emloft.net, kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: WARNING in nsim_fib6_rt_nh_del

On Thu, Jan 30, 2020 at 01:54:15AM -0800, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    b3a60822 Merge branch 'for-v5.6' of git://git.kernel.org:/..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=12461f66e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=614e56d86457f3a7
> dashboard link: https://syzkaller.appspot.com/bug?extid=63abe9d5f32ff88090eb
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> 
> Unfortunately, I don't have any reproducer for this crash yet.
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+63abe9d5f32ff88090eb@...kaller.appspotmail.com
> 
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 24083 at drivers/net/netdevsim/fib.c:448 nsim_fib6_rt_nh_del+0x287/0x350 drivers/net/netdevsim/fib.c:448

Will check.

Thanks