list_del corruption, ffff8801b5755fb0->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:47!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12187 Comm: kworker/1:4 Not tainted 4.19.0+ #313
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events p9_read_work
RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x4a lib/list_debug.c:45
Code: d3 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 20 b0 60 88 e8 86 48 d3 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 80 af 60 88 e8 72 48 d3 fd <0f> 0b 48 89 de 48 c7 c7 e0 b0 60 88 e8 61 48 d3 fd 0f 0b 48 89 de
RSP: 0018:ffff880192e1f5c0 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff8801b5755fb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8165d6c5 RDI: 0000000000000005
RBP: ffff880192e1f5d8 R08: ffff8801b90c0280 R09: ffffed003b5e5020
R10: ffffed003b5e5020 R11: ffff8801daf28107 R12: dead000000000200
R13: dead000000000100 R14: ffff8801ced377d0 R15: ffff8801ced37790
FS:  0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6313983028 CR3: 00000001c5d48000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 000000000000040d DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del include/linux/list.h:125 [inline]
 p9_read_work+0xa95/0x1140 net/9p/trans_fd.c:378
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350
Modules linked in:
---[ end trace a8dd2c3ff0b6971e ]---
RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x4a lib/list_debug.c:45
Code: d3 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 20 b0 60 88 e8 86 48 d3 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 80 af 60 88 e8 72 48 d3 fd <0f> 0b 48 89 de 48 c7 c7 e0 b0 60 88 e8 61 48 d3 fd 0f 0b 48 89 de
RSP: 0018:ffff880192e1f5c0 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff8801b5755fb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8165d6c5 RDI: 0000000000000005
RBP: ffff880192e1f5d8 R08: ffff8801b90c0280 R09: ffffed003b5e5020
R10: ffffed003b5e5020 R11: ffff8801daf28107 R12: dead000000000200
R13: dead000000000100 R14: ffff8801ced377d0 R15: ffff8801ced37790
FS:  0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6313983028 CR3: 00000001c5d48000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 000000000000040d DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400