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: 0 PID: 8407 Comm: syz-executor.0 Not tainted 4.14.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888099ec60c0 task.stack: ffff888204f98000
RIP: 0010:cma_bind_listen drivers/infiniband/core/cma.c:3187 [inline]
RIP: 0010:rdma_listen+0x281/0x800 drivers/infiniband/core/cma.c:3300
RSP: 0018:ffff888204f9fbf0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 1ffff110409f3f86 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffff88808e842940 R08: dffffc0000000000 R09: ffffffff8a09aa28
R10: ffff888204f9fbf0 R11: ffff888099ec60c0 R12: 0000000000000000
R13: 0000000000000400 R14: ffff888091a38b80 R15: 0000000000000008
FS:  00007f97ba33d700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000b70004 CR3: 000000007b23d000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ucma_listen+0x10b/0x160 drivers/infiniband/core/ucma.c:1078
 ucma_write+0x206/0x2c0 drivers/infiniband/core/ucma.c:1672
 __vfs_write+0xe4/0x630 fs/read_write.c:480
 vfs_write+0x192/0x4e0 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+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007f97ba33cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f97ba33d6d4 RCX: 000000000045c889
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000cc2 R14: 00000000004ceeb6 R15: 000000000076bfac
Code: 4c 8b a5 c0 01 00 00 31 f6 48 c7 c7 60 f3 5a 88 e8 65 dd 9c 01 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d8 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 
RIP: cma_bind_listen drivers/infiniband/core/cma.c:3187 [inline] RSP: ffff888204f9fbf0
RIP: rdma_listen+0x281/0x800 drivers/infiniband/core/cma.c:3300 RSP: ffff888204f9fbf0
---[ end trace 967c933e92054d56 ]---