list_del corruption. prev->next should be ffff88805cbf0000, but was ffff888024d91000. (prev=ffffffff8e7c8ae0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8613 Comm: syz-executor.1 Not tainted 6.2.0-rc6-syzkaller-00011-gc0b67534c95c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__list_del_entry_valid+0x118/0x130 lib/list_debug.c:59 Code: 06 0f 0b 48 c7 c7 00 c3 4b 8b 4c 89 fe 31 c0 e8 fe 6a 6e 06 0f 0b 48 c7 c7 60 c3 4b 8b 4c 89 fe 48 89 d9 31 c0 e8 e8 6a 6e 06 <0f> 0b 48 c7 c7 e0 c3 4b 8b 4c 89 fe 4c 89 f1 31 c0 e8 d2 6a 6e 06 RSP: 0018:ffffc900058df8b0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffffffff8e7c8ae0 RCX: a34a4a474fb11400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff11002fbd8be R08: ffffffff816e1b8d R09: fffff52000b1becd R10: fffff52000b1becd R11: 1ffff92000b1becc R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888146f2a000 R15: ffff88805cbf0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556faa708 CR3: 0000000064bf5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:134 [inline] list_del include/linux/list.h:148 [inline] local_release net/nfc/llcp_core.c:172 [inline] kref_put include/linux/kref.h:65 [inline] nfc_llcp_local_put+0x63/0x250 net/nfc/llcp_core.c:182 nfc_unregister_device+0x18a/0x290 net/nfc/core.c:1179 virtual_ncidev_close+0x55/0x90 drivers/nfc/virtual_ncidev.c:163 __fput+0x3ba/0x880 fs/file_table.c:320 task_work_run+0x243/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x644/0x2150 kernel/exit.c:867 do_group_exit+0x1fd/0x2b0 kernel/exit.c:1012 get_signal+0x1701/0x17c0 kernel/signal.c:2859 arch_do_signal_or_restart+0x7b/0x5e0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4100e8c0c9 Code: Unable to access opcode bytes at 0x7f4100e8c09f. RSP: 002b:00007f4101c72168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: fffffffffffffff4 RBX: 00007f4100fac120 RCX: 00007f4100e8c0c9 RDX: 0000000000000002 RSI: 0000000020000240 RDI: ffffffffffffff9c RBP: 00007f4100ee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd1cd5438f R14: 00007f4101c72300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0x118/0x130 lib/list_debug.c:59 Code: 06 0f 0b 48 c7 c7 00 c3 4b 8b 4c 89 fe 31 c0 e8 fe 6a 6e 06 0f 0b 48 c7 c7 60 c3 4b 8b 4c 89 fe 48 89 d9 31 c0 e8 e8 6a 6e 06 <0f> 0b 48 c7 c7 e0 c3 4b 8b 4c 89 fe 4c 89 f1 31 c0 e8 d2 6a 6e 06 RSP: 0018:ffffc900058df8b0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffffffff8e7c8ae0 RCX: a34a4a474fb11400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff11002fbd8be R08: ffffffff816e1b8d R09: fffff52000b1becd R10: fffff52000b1becd R11: 1ffff92000b1becc R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888146f2a000 R15: ffff88805cbf0000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9b9ad821b8 CR3: 00000000281ae000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400