WARNING: CPU: 1 PID: 18205 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612 Modules linked in: CPU: 1 UID: 0 PID: 18205 Comm: syz.7.2376 Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd 00 e3 d2 8b 41 56 4c 89 e6 48 c7 c7 80 d7 d2 8b e8 1f fd b7 fc 90 <0f> 0b 90 90 58 83 05 46 41 9e 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d RSP: 0000:ffffc90005e4f768 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff8179c889 RDX: ffff8880699d1e00 RSI: ffffffff8179c896 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000010358 R12: ffffffff8bd2de20 R13: ffffffff8b6fa0c0 R14: ffffffff8a546720 R15: ffffc90005e4f878 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31cddff8 CR3: 000000007ff3c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] debug_check_no_obj_freed+0x4b7/0x600 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2284 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x29f/0x4d0 mm/slub.c:4757 hci_release_dev+0x4d9/0x600 net/bluetooth/hci_core.c:2738 bt_host_release+0x6a/0xb0 net/bluetooth/hci_sysfs.c:87 device_release+0xa1/0x240 drivers/base/core.c:2567 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e4/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3773 vhci_release+0x81/0xf0 drivers/bluetooth/hci_vhci.c:665 __fput+0x3ff/0xb70 fs/file_table.c:448 task_work_run+0x14e/0x250 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xad8/0x2d70 kernel/exit.c:938 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x2576/0x2610 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f851a38cda9 Code: Unable to access opcode bytes at 0x7f851a38cd7f. RSP: 002b:00007f851b166038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffea RBX: 00007f851a5a5fa0 RCX: 00007f851a38cda9 RDX: 00004000000000df RSI: 0000000400000004 RDI: 0000000000000041 RBP: 00007f851a40e2a0 R08: 0000000000000401 R09: 0000300000000000 R10: 0000000000040eb1 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f851a5a5fa0 R15: 00007fffd6bd9068