WARNING: CPU: 2 PID: 13842 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 2 PID: 13842 Comm: syz-executor.1 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 40 29 05 8a 4c 89 ee 48 c7 c7 40 1d 05 8a e8 cc c1 21 05 <0f> 0b 83 05 55 a1 b2 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc90007e9f710 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815f0c28 RDI: fffff52000fd3ed4 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ea9ce R11: 0000000000000000 R12: ffffffff89adf660 R13: ffffffff8a0523c0 R14: ffffffff81660140 R15: 1ffff92000fd3eed FS: 0000000000000000(0000) GS:ffff88802cc00000(0063) knlGS:00000000f44efb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7401004 CR3: 0000000062c7d000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_object_assert_init lib/debugobjects.c:895 [inline] debug_object_assert_init+0x1f4/0x2e0 lib/debugobjects.c:866 debug_timer_assert_init kernel/time/timer.c:739 [inline] debug_assert_init kernel/time/timer.c:784 [inline] del_timer+0x6d/0x110 kernel/time/timer.c:1204 try_to_grab_pending+0x6d/0xd0 kernel/workqueue.c:1271 __cancel_work kernel/workqueue.c:3259 [inline] cancel_delayed_work+0x79/0x340 kernel/workqueue.c:3288 sco_sock_clear_timer+0x54/0xf0 net/bluetooth/sco.c:120 sco_conn_del+0x139/0x2c0 net/bluetooth/sco.c:198 sco_disconn_cfm+0x71/0xb0 net/bluetooth/sco.c:1374 hci_disconn_cfm include/net/bluetooth/hci_core.h:1543 [inline] hci_conn_hash_flush+0x127/0x260 net/bluetooth/hci_conn.c:1742 hci_dev_do_close+0x57d/0x1150 net/bluetooth/hci_core.c:1672 hci_rfkill_set_block+0x19c/0x1d0 net/bluetooth/hci_core.c:2113 rfkill_set_block+0x1f9/0x540 net/rfkill/core.c:344 rfkill_fop_write+0x267/0x500 net/rfkill/core.c:1268 do_loop_readv_writev fs/read_write.c:749 [inline] do_loop_readv_writev fs/read_write.c:733 [inline] do_iter_write+0x4f8/0x710 fs/read_write.c:853 vfs_writev+0x1aa/0x630 fs/read_write.c:924 do_writev+0x27f/0x300 fs/read_write.c:967 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf6ef5549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f44ef5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000092 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000000 RDX: 0000000000000300 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi