Re: [PATCH] net: handle no dst on skb in icmp6_send

2016-12-27 Thread David Miller
From: Hannes Frederic Sowa Date: Thu, 08 Dec 2016 15:04:17 +0100 > Hello David, > > On Mon, Nov 28, 2016, at 22:13, David Miller wrote: >> From: David Ahern >> Date: Sun, 27 Nov 2016 18:52:53 -0800 >> >> > Andrey reported the following while fuzzing the kernel with syzkaller: >> ... >> > icmp

Re: [PATCH] net: handle no dst on skb in icmp6_send

2016-12-08 Thread Hannes Frederic Sowa
Hello David, On Mon, Nov 28, 2016, at 22:13, David Miller wrote: > From: David Ahern > Date: Sun, 27 Nov 2016 18:52:53 -0800 > > > Andrey reported the following while fuzzing the kernel with syzkaller: > ... > > icmp6_send / icmpv6_send is invoked for both rx and tx paths. In both > > cases the

Re: [PATCH] net: handle no dst on skb in icmp6_send

2016-11-28 Thread David Miller
From: David Ahern Date: Sun, 27 Nov 2016 18:52:53 -0800 > Andrey reported the following while fuzzing the kernel with syzkaller: ... > icmp6_send / icmpv6_send is invoked for both rx and tx paths. In both > cases the dst->dev should be preferred for determining the L3 domain > if the dst has bee

[PATCH] net: handle no dst on skb in icmp6_send

2016-11-27 Thread David Ahern
Andrey reported the following while fuzzing the kernel with syzkaller: kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: [#1] SMP KASAN Modules linked in: CPU: 0 PID: 3859 Comm: a.out Not tainted 4.9.0-rc6+ #429 Har