Re: [PATCH net] sctp: remove sched init from sctp_stream_init

2019-03-08 Thread David Miller
From: Xin Long Date: Fri, 8 Mar 2019 15:49:16 +0800 > syzbot reported a NULL-ptr deref caused by that sched->init() in > sctp_stream_init() set stream->rr_next = NULL. > > kasan: GPF could be caused by NULL-ptr deref or user memory access > RIP: 0010:sctp_sched_rr_dequeue+0xd3/0x170 net/sct

Re: [PATCH net] sctp: remove sched init from sctp_stream_init

2019-03-08 Thread Marcelo Ricardo Leitner
On Fri, Mar 08, 2019 at 07:21:36AM -0500, Neil Horman wrote: > On Fri, Mar 08, 2019 at 03:49:16PM +0800, Xin Long wrote: > > syzbot reported a NULL-ptr deref caused by that sched->init() in > > sctp_stream_init() set stream->rr_next = NULL. > > > > kasan: GPF could be caused by NULL-ptr deref or

Re: [PATCH net] sctp: remove sched init from sctp_stream_init

2019-03-08 Thread Neil Horman
On Fri, Mar 08, 2019 at 03:49:16PM +0800, Xin Long wrote: > syzbot reported a NULL-ptr deref caused by that sched->init() in > sctp_stream_init() set stream->rr_next = NULL. > > kasan: GPF could be caused by NULL-ptr deref or user memory access > RIP: 0010:sctp_sched_rr_dequeue+0xd3/0x170 net/

[PATCH net] sctp: remove sched init from sctp_stream_init

2019-03-07 Thread Xin Long
syzbot reported a NULL-ptr deref caused by that sched->init() in sctp_stream_init() set stream->rr_next = NULL. kasan: GPF could be caused by NULL-ptr deref or user memory access RIP: 0010:sctp_sched_rr_dequeue+0xd3/0x170 net/sctp/stream_sched_rr.c:141 Call Trace: sctp_outq_dequeue_data