------------[ cut here ]------------
kernel BUG at lib/list_debug.c:26!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31739 Comm: syz-executor.3 Not tainted 5.0.0-next-20190306 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26
Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 c0 dc a1 87 e8 29 9c 29 fe 0f 0b 48 89 f1 48 c7 c7 40 dc a1 87 4c 89 e6 e8 15 9c 29 fe <0f> 0b 4c 89 f6 48 c7 c7 e0 dd a1 87 e8 04 9c 29 fe 0f 0b 4c 89 ea
RSP: 0018:ffff8881fbddfc08 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff88803ae2a630 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b0096 RDI: ffffed103f7bbf73
RBP: ffff8881fbddfc20 R08: 0000000000000075 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: ffffffff891d4c60
R13: ffff88803ae2a460 R14: ffff88803ae2a460 R15: 0000000000000000
FS:  00007fea8675f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000711f90 CR3: 0000000219757000 CR4: 00000000001426e0
Call Trace:
 __list_add include/linux/list.h:60 [inline]
 list_add_tail include/linux/list.h:93 [inline]
 cma_listen_on_all drivers/infiniband/core/cma.c:2483 [inline]
 rdma_listen+0x6b7/0x970 drivers/infiniband/core/cma.c:3537
 ucma_listen+0x14d/0x1c0 drivers/infiniband/core/ucma.c:1100
 ucma_write+0x2da/0x3c0 drivers/infiniband/core/ucma.c:1696
 __vfs_write+0x8d/0x110 fs/read_write.c:485
 vfs_write+0x20c/0x580 fs/read_write.c:549
 ksys_write+0xea/0x1f0 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fea8675ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29
RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fea8675f6d4
R13: 00000000004c71d9 R14: 00000000004dcc90 R15: 00000000ffffffff
Modules linked in:
---[ end trace d9be1f63a26b04b4 ]---
RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26
Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 c0 dc a1 87 e8 29 9c 29 fe 0f 0b 48 89 f1 48 c7 c7 40 dc a1 87 4c 89 e6 e8 15 9c 29 fe <0f> 0b 4c 89 f6 48 c7 c7 e0 dd a1 87 e8 04 9c 29 fe 0f 0b 4c 89 ea
RSP: 0018:ffff8881fbddfc08 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff88803ae2a630 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b0096 RDI: ffffed103f7bbf73
RBP: ffff8881fbddfc20 R08: 0000000000000075 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: ffffffff891d4c60
R13: ffff88803ae2a460 R14: ffff88803ae2a460 R15: 0000000000000000
FS:  00007fea8675f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000219757000 CR4: 00000000001426e0