RE: net: GPF in __netlink_ns_capable

2016-01-20 Thread Wan, Kaike
er; Thomas Graf; > Daniel Borkmann; Ken-ichirou MATSUZAWA; Nicolas Dichtel; Florian > Westphal; netdev; LKML; syzkaller; Kostya Serebryany; Alexander Potapenko; > Sasha Levin; Eric Dumazet; Dmitry Vyukov; Fleck, John; Weiny, Ira; Doug > Ledford; Jason Gunthorpe > Subject: Re: net: GPF in __

Re: net: GPF in __netlink_ns_capable

2016-01-20 Thread Herbert Xu
On Wed, Jan 20, 2016 at 02:35:59PM +, Wan, Kaike wrote: > >From the code (netlink_dump() in net/netlink/af_netlink.c), it shows that a > >skb is allocated without initializing the skb->cb[] field, which will cause > >oops if netlink_capable() is called with the duplicate skb. This will happen