------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7980 Comm: syz-executor5 Not tainted 4.20.0-rc5+ #366
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26
Code: e8 b0 27 d2 fd 0f 0b 48 89 d9 48 c7 c7 20 d7 60 88 e8 9f 27 d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 d7 60 88 48 89 de e8 8b 27 d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00
RSP: 0018:ffff88817acaf948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89db44a0 RCX: ffffc9000fe4a000
RDX: 0000000000000000 RSI: ffffffff8165fbe5 RDI: 0000000000000005
RBP: ffff88817acaf960 R08: ffff88817a07e340 R09: ffffed103b5c5020
kobject: 'loop3' (0000000006bc7360): kobject_uevent_env
R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffff8881c6a36260
R13: ffff8881c6a36260 R14: ffff8881b32b77e0 R15: ffff8881c6a36430
FS:  00007fbf9e144700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001f98978 CR3: 000000017ce06000 CR4: 00000000001426f0
kobject: 'loop3' (0000000006bc7360): fill_kobj_path: path = '/devices/virtual/block/loop3'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:2474 [inline]
 rdma_listen+0x6dc/0x990 drivers/infiniband/core/cma.c:3489
kobject: 'loop2' (00000000a9d9d87a): kobject_uevent_env
 ucma_listen+0x1a4/0x260 drivers/infiniband/core/ucma.c:1100
kobject: 'loop2' (00000000a9d9d87a): fill_kobj_path: path = '/devices/virtual/block/loop2'
 ucma_write+0x365/0x460 drivers/infiniband/core/ucma.c:1689
kobject: 'loop0' (000000006544634d): kobject_uevent_env
 __vfs_write+0x119/0x9f0 fs/read_write.c:485
kobject: 'loop0' (000000006544634d): fill_kobj_path: path = '/devices/virtual/block/loop0'
 vfs_write+0x1fc/0x560 fs/read_write.c:549
 ksys_write+0x101/0x260 fs/read_write.c:598
kobject: 'loop3' (0000000006bc7360): kobject_uevent_env
 __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
kobject: 'loop3' (0000000006bc7360): fill_kobj_path: path = '/devices/virtual/block/loop3'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbf9e143c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
kobject: 'loop0' (000000006544634d): kobject_uevent_env
RDX: 0000000000000010 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbf9e1446d4
kobject: 'loop0' (000000006544634d): fill_kobj_path: path = '/devices/virtual/block/loop0'
R13: 00000000004c59e0 R14: 00000000004d9ae8 R15: 00000000ffffffff
Modules linked in:
---[ end trace dfa9573cff7ed850 ]---
RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26
Code: e8 b0 27 d2 fd 0f 0b 48 89 d9 48 c7 c7 20 d7 60 88 e8 9f 27 d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 d7 60 88 48 89 de e8 8b 27 d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00
RSP: 0018:ffff88817acaf948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89db44a0 RCX: ffffc9000fe4a000
RDX: 0000000000000000 RSI: ffffffff8165fbe5 RDI: 0000000000000005
RBP: ffff88817acaf960 R08: ffff88817a07e340 R09: ffffed103b5c5020
R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffff8881c6a36260
R13: ffff8881c6a36260 R14: ffff8881b32b77e0 R15: ffff8881c6a36430
FS:  00007fbf9e144700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa524017000 CR3: 000000017ce06000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400