IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
list_add corruption. prev->next should be next (ffffffff89b7b8c0), but was 0000000000000000. (prev=ffff8801c5f6d420).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31448 Comm: syz-executor1 Not tainted 4.19.0-rc8+ #285
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 9f ee 34 fe eb 97 48 89 d9 48 c7 c7 00 8f 40 88 e8 62 95 d7 fd 0f 0b 48 89 f1 48 c7 c7 c0 8f 40 88 48 89 de e8 4e 95 d7 fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 00 91 40 88 e8 3a 95 d7 fd 0f 0b
RSP: 0018:ffff880123c77948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89b7b8c0 RCX: ffffc90003e76000
RDX: 0000000000000000 RSI: ffffffff8164d435 RDI: 0000000000000005
RBP: ffff880123c77960 R08: ffff8801d2bd0580 R09: ffffed003b5e4fe8
R10: ffffed003b5e4fe8 R11: ffff8801daf27f47 R12: ffff880182a94420
R13: ffff880182a94420 R14: ffff8801c5f6d420 R15: ffff880182a945f0
FS:  00007f34c5ae0700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 0000000180c46000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop0' (00000000f4b21e9c): kobject_uevent_env
 __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:2366 [inline]
 rdma_listen+0x6dc/0x990 drivers/infiniband/core/cma.c:3383
kobject: 'loop0' (00000000f4b21e9c): fill_kobj_path: path = '/devices/virtual/block/loop0'
 ucma_listen+0x1a4/0x260 drivers/infiniband/core/ucma.c:1098
kobject: 'loop4' (00000000765e43d9): kobject_uevent_env
kobject: 'loop4' (00000000765e43d9): fill_kobj_path: path = '/devices/virtual/block/loop4'
 ucma_write+0x336/0x420 drivers/infiniband/core/ucma.c:1686
 __vfs_write+0x119/0x9f0 fs/read_write.c:485
kobject: 'loop5' (0000000063da9d20): kobject_uevent_env
kobject: 'loop5' (0000000063da9d20): fill_kobj_path: path = '/devices/virtual/block/loop5'
 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
kobject: 'loop3' (0000000028f08600): kobject_uevent_env
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'loop3' (0000000028f08600): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000f4b21e9c): kobject_uevent_env
kobject: 'loop0' (00000000f4b21e9c): fill_kobj_path: path = '/devices/virtual/block/loop0'
 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:00007f34c5adfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000010 RSI: 0000000020003a40 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f34c5ae06d4
R13: 00000000004c53b3 R14: 00000000004d8c10 R15: 00000000ffffffff
Modules linked in:
---[ end trace c0f7f3cd73ddd185 ]---
RIP: 0010:__list_add_valid.cold.0+0x23/0x25 lib/list_debug.c:26
kobject: 'loop2' (00000000393c9102): kobject_uevent_env
Code: e8 9f ee 34 fe eb 97 48 89 d9 48 c7 c7 00 8f 40 88 e8 62 95 d7 fd 0f 0b 48 89 f1 48 c7 c7 c0 8f 40 88 48 89 de e8 4e 95 d7 fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 00 91 40 88 e8 3a 95 d7 fd 0f 0b
kobject: 'loop2' (00000000393c9102): fill_kobj_path: path = '/devices/virtual/block/loop2'
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
RSP: 0018:ffff880123c77948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89b7b8c0 RCX: ffffc90003e76000
kobject: 'loop2' (00000000393c9102): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
kobject: 'loop2' (00000000393c9102): fill_kobj_path: path = '/devices/virtual/block/loop2'
RDX: 0000000000000000 RSI: ffffffff8164d435 RDI: 0000000000000005
RBP: ffff880123c77960 R08: ffff8801d2bd0580 R09: ffffed003b5e4fe8
R10: ffffed003b5e4fe8 R11: ffff8801daf27f47 R12: ffff880182a94420
R13: ffff880182a94420 R14: ffff8801c5f6d420 R15: ffff880182a945f0
FS:  00007f34c5ae0700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000180c46000 CR4: 00000000001426e0
kobject: 'loop0' (00000000f4b21e9c): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop0' (00000000f4b21e9c): fill_kobj_path: path = '/devices/virtual/block/loop0'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400