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: 0 PID: 12619 Comm: syz-executor4 Not tainted 4.16.0+ #377
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rdma_cap_opa_ah include/rdma/ib_verbs.h:2773 [inline]
RIP: 0010:ucma_set_ib_path.isra.14+0x26a/0x850 drivers/infiniband/core/ucma.c:1249
RSP: 0018:ffff8801d2c3f7f0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000029
RDX: dffffc0000000000 RSI: ffffc900036bc000 RDI: 0000000000000148
RBP: ffff8801d2c3f9f0 R08: ffffed003a587f18 R09: ffffffff87b6c65c
R10: 0000000000000002 R11: ffffed003a587f17 R12: ffff8801d2c3f8a0
R13: 1ffff1003a587f00 R14: ffff8801aece86b0 R15: ffff8801aea23b40
FS:  00007f99daea6700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b9bc22000 CR3: 00000001c4823005 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 ucma_set_option_ib drivers/infiniband/core/ucma.c:1272 [inline]
 ucma_set_option_level drivers/infiniband/core/ucma.c:1291 [inline]
 ucma_set_option+0x234/0x520 drivers/infiniband/core/ucma.c:1325
 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1656
 __vfs_write+0xef/0x970 fs/read_write.c:485
 vfs_write+0x189/0x510 fs/read_write.c:549
 ksys_write+0xef/0x220 fs/read_write.c:598
 SYSC_write fs/read_write.c:610 [inline]
 SyS_write+0x24/0x30 fs/read_write.c:607
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4552d9
RSP: 002b:00007f99daea5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f99daea66d4 RCX: 00000000004552d9
RDX: 0000000000000020 RSI: 0000000020001500 RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000006bd R14: 00000000006fd258 R15: 0000000000000000
Code: 00 00 48 c1 ea 03 80 3c 02 00 0f 85 0d 05 00 00 49 8b 07 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 54 05 00 00 48 c1 e3 04 48 03 98 48 01 00 00 
RIP: rdma_cap_opa_ah include/rdma/ib_verbs.h:2773 [inline] RSP: ffff8801d2c3f7f0
RIP: ucma_set_ib_path.isra.14+0x26a/0x850 drivers/infiniband/core/ucma.c:1249 RSP: ffff8801d2c3f7f0
---[ end trace b407f5106539fa4c ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..