list_del corruption. next->prev should be ffff88802a7f6000, but was dead000000000122. (next=ffff88807a7d1000) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5633 Comm: syz-executor.5 Not tainted 6.2.0-rc7-syzkaller-00013-g513c1a3d3f19 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__list_del_entry_valid+0x122/0x130 Code: 58 06 0f 0b 48 c7 c7 e0 e0 39 8b 4c 89 fe 48 89 d9 e8 22 de 58 06 0f 0b 48 c7 c7 60 e1 39 8b 4c 89 fe 4c 89 f1 e8 0e de 58 06 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 80 3d e5 12 RSP: 0018:ffffc900066afc98 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88807a7d1008 RCX: 6b813d46c6e19700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff816dcafc R09: fffff52000cd5f4d R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88807a7d1000 R15: ffff88802a7f6000 FS: 0000555556bfb400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f08885821b8 CR3: 0000000021987000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nfc_llcp_local_put+0x5f/0x180 nfc_unregister_device+0x167/0x2a0 virtual_ncidev_close+0x59/0x90 __fput+0x3b7/0x890 task_work_run+0x24a/0x300 exit_to_user_mode_loop+0xd1/0xf0 exit_to_user_mode_prepare+0xb1/0x140 syscall_exit_to_user_mode+0x54/0x2d0 do_syscall_64+0x4d/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa01083dfab Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe017b1640 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fa01083dfab RDX: 0000000000000000 RSI: 0000001b32220080 RDI: 0000000000000003 RBP: 00007fa0109ad980 R08: 0000000000000000 R09: 0000000078c6ba01 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000030bb1 R13: 00007ffe017b1740 R14: 00007ffe017b1760 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0x122/0x130 Code: 58 06 0f 0b 48 c7 c7 e0 e0 39 8b 4c 89 fe 48 89 d9 e8 22 de 58 06 0f 0b 48 c7 c7 60 e1 39 8b 4c 89 fe 4c 89 f1 e8 0e de 58 06 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 80 3d e5 12 RSP: 0018:ffffc900066afc98 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88807a7d1008 RCX: 6b813d46c6e19700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff816dcafc R09: fffff52000cd5f4d R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88807a7d1000 R15: ffff88802a7f6000 FS: 0000555556bfb400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fea039821b8 CR3: 0000000021987000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400