Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread David Ahern
On 2/28/17 3:14 PM, Eric Dumazet wrote: > On Tue, Feb 28, 2017 at 3:09 PM, David Ahern wrote: >> On 2/28/17 5:10 AM, Eric Dumazet wrote: >>> David, rt->rt6i_idev can be NULL. >> >> Do you know of an example where rt6i_idev can be NULL - besides the >> null_entry rt which is null only because of in

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread David Ahern
On 2/28/17 5:10 AM, Eric Dumazet wrote: > David, rt->rt6i_idev can be NULL. Do you know of an example where rt6i_idev can be NULL - besides the null_entry rt which is null only because of init order?

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread Eric Dumazet
On Tue, Feb 28, 2017 at 3:09 PM, David Ahern wrote: > On 2/28/17 5:10 AM, Eric Dumazet wrote: >> David, rt->rt6i_idev can be NULL. > > Do you know of an example where rt6i_idev can be NULL - besides the > null_entry rt which is null only because of init order? I might have been mistaken, but man

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread Cong Wang
On Tue, Feb 28, 2017 at 5:10 AM, Eric Dumazet wrote: > On Tue, 2017-02-28 at 12:34 +0100, Dmitry Vyukov wrote: >> Hello, >> >> The following program triggers GPF in rt6_nexthop_info >> >> // autogenerated by syzkaller (http://github.com/google/syzkaller) >> #include >> #include >> #include >> #

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread Eric Dumazet
On Tue, 2017-02-28 at 14:30 +0100, Dmitry Vyukov wrote: > I always run get_maintainer.pl on the top file. David is not listed > for net/ipv6/route.c. > I've added Yuchung as you said you want to partition load. Yuchung is working on TCP stack exclusively, as far as linux kernel is concerned. He

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread Dmitry Vyukov
On Tue, Feb 28, 2017 at 2:10 PM, Eric Dumazet wrote: > On Tue, 2017-02-28 at 12:34 +0100, Dmitry Vyukov wrote: >> Hello, >> >> The following program triggers GPF in rt6_nexthop_info >> >> // autogenerated by syzkaller (http://github.com/google/syzkaller) >> #include >> #include >> #include >> #

Re: net: GPF in rt6_nexthop_info

2017-02-28 Thread Eric Dumazet
On Tue, 2017-02-28 at 12:34 +0100, Dmitry Vyukov wrote: > Hello, > > The following program triggers GPF in rt6_nexthop_info > > // autogenerated by syzkaller (http://github.com/google/syzkaller) > #include > #include > #include > #include > #include > > int main() > { > unshare(CLONE_NEWN

net: GPF in rt6_nexthop_info

2017-02-28 Thread Dmitry Vyukov
Hello, The following program triggers GPF in rt6_nexthop_info // autogenerated by syzkaller (http://github.com/google/syzkaller) #include #include #include #include #include int main() { unshare(CLONE_NEWNET); int fd = socket(PF_NETLINK, SOCK_DGRAM|SOCK_NONBLOCK, 0); const char* data