IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
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: 5547 Comm: syz-executor4 Not tainted 4.16.0-rc5+ #265
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ucma_copy_conn_param drivers/infiniband/core/ucma.c:1021 [inline]
RIP: 0010:ucma_connect+0x49d/0x870 drivers/infiniband/core/ucma.c:1042
RSP: 0018:ffff8801ae9ef8a8 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff8801ae9efa58 RCX: 0000000000000004
RDX: dffffc0000000000 RSI: 1ffff10035d3df1d RDI: 0000000000000020
RBP: ffff8801ae9efa80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff886133c0 R11: 0000000000000000 R12: 1ffff10035d3df17
R13: ffff8801ae9ef918 R14: ffff8801cbdb6ac0 R15: ffff8801ae9ef8d8
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7f27b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008138024 CR3: 00000001af121001 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 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_32_irqs_on arch/x86/entry/common.c:330 [inline]
 do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f4cc99
RSP: 002b:00000000f7f2709c EFLAGS: 00000286 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0
RDX: 0000000000000120 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: b6 14 16 84 d2 74 09 80 fa 03 0f 8e a5 01 00 00 48 8d 78 20 89 8b 90 fe ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <0f> b6 0c 11 48 89 fa 83 e2 07 83 c2 01 38 ca 7c 08 84 c9 0f 85 
RIP: ucma_copy_conn_param drivers/infiniband/core/ucma.c:1021 [inline] RSP: ffff8801ae9ef8a8
RIP: ucma_connect+0x49d/0x870 drivers/infiniband/core/ucma.c:1042 RSP: ffff8801ae9ef8a8
---[ end trace c11d3e7205366f87 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..