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ODEBUG: free active (active state 0) object type: work_struct hint: io_ring_file_ref_switch+0x0/0xc90 include/linux/refcount.h:191
WARNING: CPU: 1 PID: 22173 at lib/debugobjects.c:484 debug_print_object+0x168/0x210 lib/debugobjects.c:481
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 22173 Comm: syz-executor.5 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x12d/0x187 lib/dump_stack.c:118
 panic+0x22a/0x4e3 kernel/panic.c:221
 __warn.cold.10+0x25/0x2a kernel/panic.c:582
 report_bug+0x1b0/0x270 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:debug_print_object+0x168/0x210 lib/debugobjects.c:481
Code: cc 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd 20 4f cc 87 4c 89 fe 48 c7 c7 80 44 cc 87 e8 10 e6 f0 fd <0f> 0b 83 05 b3 09 60 06 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90005287a20 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000007 RDI: ffffffff8a91f560
RBP: ffffc90005287a60 R08: ffffed1015d645c9 R09: ffffed1015d645c9
R10: ffffed1015d645c8 R11: ffff8880aeb22e43 R12: 0000000000000001
R13: ffffffff88d6e7e0 R14: ffffffff8144e950 R15: ffffffff87cc4b80
 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline]
 debug_check_no_obj_freed+0x2db/0x436 lib/debugobjects.c:994
 kfree+0xf6/0x2c0 mm/slab.c:3756
 io_sqe_files_unregister+0x1b0/0x290 fs/io_uring.c:4412
 io_ring_ctx_free fs/io_uring.c:5356 [inline]
 io_ring_ctx_wait_and_kill+0x395/0x8d0 fs/io_uring.c:5425
 io_uring_release+0x3d/0x50 fs/io_uring.c:5433
 __fput+0x25a/0x770 fs/file_table.c:280
 ____fput+0x9/0x10 fs/file_table.c:313
 task_work_run+0x108/0x180 kernel/task_work.c:113
 get_signal+0x1696/0x1d40 kernel/signal.c:2528
 do_signal+0x87/0x1710 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop+0x114/0x2e0 arch/x86/entry/common.c:160
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:278 [inline]
 do_syscall_64+0x4ff/0x5f0 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a919
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f040a10ac78 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000045a919
RDX: 0000000020000180 RSI: 0000000000000002 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007f040a10b6d4
R13: 00000000004cf7f0 R14: 00000000004d7080 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..