Re: [PATCH net v2] netfilter: drop outermost socket lock in getsockopt()

2018-02-14 Thread Pablo Neira Ayuso
On Thu, Feb 08, 2018 at 12:19:00PM +0100, Paolo Abeni wrote: > The Syzbot reported a possible deadlock in the netfilter area caused by > rtnl lock, xt lock and socket lock being acquired with a different order > on different code paths, leading to the following backtrace: > >

Re: [PATCH net v2] netfilter: drop outermost socket lock in getsockopt()

2018-02-08 Thread Xin Long
On Thu, Feb 8, 2018 at 7:19 PM, Paolo Abeni wrote: > The Syzbot reported a possible deadlock in the netfilter area caused by > rtnl lock, xt lock and socket lock being acquired with a different order > on different code paths, leading to the following backtrace: > >

[PATCH net v2] netfilter: drop outermost socket lock in getsockopt()

2018-02-08 Thread Paolo Abeni
The Syzbot reported a possible deadlock in the netfilter area caused by rtnl lock, xt lock and socket lock being acquired with a different order on different code paths, leading to the following backtrace: == WARNING: possible circular locking