list_add corruption. prev->next should be next (ffffffff887c5020), but was 0000000000000000. (prev=ffff8801c723ea60).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] SMP KASAN
CPU: 0 PID: 18516 Comm: syz-executor7 Not tainted 4.19.0-rc1-next-20180831+ #53
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid.cold.0+0x23/0x25 lib/list_debug.c:26
Code: e8 af 63 47 fe eb 97 48 89 d9 48 c7 c7 60 55 5d 87 e8 82 18 ef fd 0f 0b 48 89 f1 48 c7 c7 20 56 5d 87 48 89 de e8 6e 18 ef fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 60 57 5d 87 e8 5a 18 ef fd 0f 0b
RSP: 0018:ffff880188f07948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff887c5020 RCX: ffffc90002698000
RDX: 0000000000000000 RSI: ffffffff8163ac11 RDI: 0000000000000001
RBP: ffff880188f07960 R08: ffff88018e9d2500 R09: ffffed003b605010
R10: ffffed003b605010 R11: ffff8801db028087 R12: ffff880190fa25e0
R13: ffff880190fa25e0 R14: ffff8801c723ea60 R15: ffff880190fa27b0
FS:  00007f0df29bd700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed22000 CR3: 00000001b5815000 CR4: 00000000001406f0
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:2364 [inline]
 rdma_listen+0x6dc/0x990 drivers/infiniband/core/cma.c:3381
 ucma_listen+0x1a4/0x260 drivers/infiniband/core/ucma.c:1096
 ucma_write+0x336/0x420 drivers/infiniband/core/ucma.c:1680
 __vfs_write+0x117/0x9d0 fs/read_write.c:485
 vfs_write+0x1fc/0x560 fs/read_write.c:549
 ksys_write+0x101/0x260 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+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457099
Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0df29bcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0df29bd6d4 RCX: 0000000000457099
RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d7c68 R14: 00000000004ca9bf R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 35306ce5ffcc2445 ]---
RIP: 0010:__list_add_valid.cold.0+0x23/0x25 lib/list_debug.c:26
Code: e8 af 63 47 fe eb 97 48 89 d9 48 c7 c7 60 55 5d 87 e8 82 18 ef fd 0f 0b 48 89 f1 48 c7 c7 20 56 5d 87 48 89 de e8 6e 18 ef fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 60 57 5d 87 e8 5a 18 ef fd 0f 0b
RSP: 0018:ffff880188f07948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff887c5020 RCX: ffffc90002698000
RDX: 0000000000000000 RSI: ffffffff8163ac11 RDI: 0000000000000001
RBP: ffff880188f07960 R08: ffff88018e9d2500 R09: ffffed003b605010
R10: ffffed003b605010 R11: ffff8801db028087 R12: ffff880190fa25e0
R13: ffff880190fa25e0 R14: ffff8801c723ea60 R15: ffff880190fa27b0
FS:  00007f0df29bd700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed22000 CR3: 00000001b5815000 CR4: 00000000001406f0