kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 17419 Comm: syz-executor.4 Not tainted 4.14.227-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809d80c200 task.stack: ffff8880aff38000
RIP: 0010:rdma_cap_ib_sa include/rdma/ib_verbs.h:2682 [inline]
RIP: 0010:rdma_resolve_route+0x1cf/0x2e30 drivers/infiniband/core/cma.c:2686
RSP: 0018:ffff8880aff3fa50 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000029 RSI: 0000000000000001 RDI: 0000000000000148
RBP: ffff8880aff3fc10 R08: ffffffff8b9c8110 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286
R13: ffff88809db85b00 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f134abf5700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ea24000 CR3: 000000009bd63000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ucma_resolve_route+0xb2/0x120 drivers/infiniband/core/ucma.c:740
 ucma_write+0x206/0x2c0 drivers/infiniband/core/ucma.c:1672
 __vfs_write+0xe4/0x630 fs/read_write.c:480
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
RSP: 002b:00007f134abf5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffe137a14ff R14: 00007f134abf5300 R15: 0000000000022000
Code: df 48 c1 ea 03 80 3c 02 00 0f 85 e7 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7d 00 49 8d bf 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b7 25 00 00 48 b8 00 00 00 00 00 fc ff df 45 
RIP: rdma_cap_ib_sa include/rdma/ib_verbs.h:2682 [inline] RSP: ffff8880aff3fa50
RIP: rdma_resolve_route+0x1cf/0x2e30 drivers/infiniband/core/cma.c:2686 RSP: ffff8880aff3fa50
---[ end trace d6bd5105ef8b0f78 ]---