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:
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Modules linked in:
CPU: 0 PID: 19815 Comm: syz-executor4 Not tainted 4.16.0-rc4+ #347
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rdma_listen+0x72/0x8e0 drivers/infiniband/core/cma.c:3300
RSP: 0018:ffff8801ad727998 EFLAGS: 00010207
RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffffffff841d7e34
RDX: 0000000000000077 RSI: ffffc90001573000 RDI: 0000000000000214
RBP: ffff8801ad727a30 R08: ffffffff87450060 R09: 0000000000000000
R10: ffffffff88613380 R11: 0000000000000000 R12: 1ffff10035ae4f35
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000400
FS:  00007f15eedbc700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000930025 CR3: 00000001cc2a7003 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ucma_listen+0x172/0x1f0 drivers/infiniband/core/ucma.c:1064
 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1627
 __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:00007f15eedbbc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f15eedbc6d4 RCX: 0000000000453e69
RDX: 0000000000000010 RSI: 0000000020000500 RDI: 0000000000000017
RBP: 000000000072bf58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000672 R14: 00000000006f9b50 R15: 0000000000000001
Code: d0 7d 1d 84 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 1c 88 53 fd 48 8d bb 14 02 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 
RIP: rdma_listen+0x72/0x8e0 drivers/infiniband/core/cma.c:3300 RSP: ffff8801ad727998
---[ end trace a0c2ec3abb786445 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..