binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: undelivered TRANSACTION_ERROR: 29189
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 29530 Comm: syz-executor2 Not tainted 4.16.0-rc5+ #356
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rdma_protocol_roce include/rdma/ib_verbs.h:2546 [inline]
RIP: 0010:rdma_join_multicast+0x46d/0x3bb0 drivers/infiniband/core/cma.c:4194
RSP: 0018:ffff8801d3887570 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff8801c88abb00 RCX: 0000000000000029
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000148
RBP: ffff8801d3887870 R08: 0000000000000000 R09: 1ffff1003a710e8c
R10: ffff8801d3887428 R11: 0000000000000001 R12: ffff8801cde52dc0
R13: ffff8801c88abbad R14: 0000000000000000 R15: ffff8801cde52fc0
FS:  00007f2ad70d2700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b9bc21000 CR3: 00000001d1f5f004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ucma_process_join+0x4da/0xa90 drivers/infiniband/core/ucma.c:1375
 ucma_join_multicast+0xa5/0x110 drivers/infiniband/core/ucma.c:1435
 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1633
 __vfs_write+0xef/0x970 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x453e69
RSP: 002b:00007f2ad70d1c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2ad70d26d4 RCX: 0000000000453e69
RDX: 00000000000000a0 RSI: 0000000020000200 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000672 R14: 00000000006f9b50 R15: 0000000000000000
Code: 00 48 c1 ea 03 80 3c 02 00 0f 85 d7 34 00 00 49 8b 04 24 48 ba 00 00 00 00 00 fc ff df 48 8d b8 48 01 00 00 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 f5 35 00 00 49 c1 e6 04 4c 03 b0 48 01 00 00 
RIP: rdma_protocol_roce include/rdma/ib_verbs.h:2546 [inline] RSP: ffff8801d3887570
RIP: rdma_join_multicast+0x46d/0x3bb0 drivers/infiniband/core/cma.c:4194 RSP: ffff8801d3887570
---[ end trace ed7b2a00ad741cb1 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..