list_del corruption, ffff8801d2425eb0->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: 31991 Comm: kworker/1:3 Not tainted 4.19.0+ #97 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: d2 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 40 bd 60 88 e8 76 a3 d2 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 a0 bc 60 88 e8 62 a3 d2 fd <0f> 0b 48 89 de 48 c7 c7 00 be 60 88 e8 51 a3 d2 fd 0f 0b 48 89 de RSP: 0018:ffff88017e57f5c0 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff8801d2425eb0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8165e9b5 RDI: 0000000000000005 RBP: ffff88017e57f5d8 R08: ffff8801bdc06240 R09: ffffed003b5e5020 R10: ffffed003b5e5020 R11: ffff8801daf28107 R12: dead000000000200 R13: dead000000000100 R14: ffff8801d5520050 R15: ffff8801d5520010 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000a40021 CR3: 0000000189dad000 CR4: 00000000001406e0 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 65d450a327c5f944 ]--- RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x4a lib/list_debug.c:45 Code: d2 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 40 bd 60 88 e8 76 a3 d2 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 a0 bc 60 88 e8 62 a3 d2 fd <0f> 0b 48 89 de 48 c7 c7 00 be 60 88 e8 51 a3 d2 fd 0f 0b 48 89 de RSP: 0018:ffff88017e57f5c0 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff8801d2425eb0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8165e9b5 RDI: 0000000000000005 RBP: ffff88017e57f5d8 R08: ffff8801bdc06240 R09: ffffed003b5e5020 R10: ffffed003b5e5020 R11: ffff8801daf28107 R12: dead000000000200 R13: dead000000000100 R14: ffff8801d5520050 R15: ffff8801d5520010 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000a40021 CR3: 0000000189dad000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400