list_del corruption, ffff88817f09beb0->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: 24811 Comm: kworker/1:1 Not tainted 4.20.0 #165
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+0x26/0x58 lib/list_debug.c:45
Code: d4 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 e0 df 60 88 e8 8a f2 d4 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 80 df 60 88 e8 76 f2 d4 fd <0f> 0b 48 89 de 48 c7 c7 a0 e0 60 88 e8 65 f2 d4 fd 0f 0b 48 89 de
RSP: 0018:ffff8881843d75c0 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff88817f09beb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81653f85 RDI: 0000000000000005
RBP: ffff8881843d75d8 R08: ffff88817e2ee340 R09: ffffed103b5e5020
R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: dead000000000200
R13: dead000000000100 R14: ffff8881d21d1b10 R15: ffff8881d21d1ad0
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fccc7f25518 CR3: 00000001be7e0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 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:352
Modules linked in:
---[ end trace d55fdd5f98bbb5d4 ]---
RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x58 lib/list_debug.c:45
Code: d4 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 e0 df 60 88 e8 8a f2 d4 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 80 df 60 88 e8 76 f2 d4 fd <0f> 0b 48 89 de 48 c7 c7 a0 e0 60 88 e8 65 f2 d4 fd 0f 0b 48 89 de
RSP: 0018:ffff8881843d75c0 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff88817f09beb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81653f85 RDI: 0000000000000005
RBP: ffff8881843d75d8 R08: ffff88817e2ee340 R09: ffffed103b5e5020
R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: dead000000000200
R13: dead000000000100 R14: ffff8881d21d1b10 R15: ffff8881d21d1ad0
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fccc7f25518 CR3: 00000001be7e0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400