------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: io_ring_file_ref_switch+0x0/0xa60 fs/io_uring.c:5510
WARNING: CPU: 0 PID: 13337 at lib/debugobjects.c:488 debug_print_object lib/debugobjects.c:485 [inline]
WARNING: CPU: 0 PID: 13337 at lib/debugobjects.c:488 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
WARNING: CPU: 0 PID: 13337 at lib/debugobjects.c:488 debug_check_no_obj_freed+0x468/0x620 lib/debugobjects.c:998
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 13337 Comm: syz-executor.2 Not tainted 5.5.0-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+0x1fb/0x318 lib/dump_stack.c:118
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x209/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0xcf/0x1c0 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 lib/debugobjects.c:485 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
RIP: 0010:debug_check_no_obj_freed+0x468/0x620 lib/debugobjects.c:998
Code: 08 48 89 df e8 a9 c0 10 fe 4c 8b 03 48 c7 c7 95 7f f0 88 48 c7 c6 0f 75 ee 88 4c 89 e2 44 89 f9 4d 89 e9 31 c0 e8 88 72 a5 fd <0f> 0b 48 ba 00 00 00 00 00 fc ff df 4c 8b 6d b0 ff 05 16 69 c6 05
RSP: 0018:ffffc900015b7af8 EFLAGS: 00010046
RAX: c3c61c9dffa86600 RBX: ffffffff892d0fa0 RCX: ffff888050d04600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900015b7b90 R08: ffffffff815fcf04 R09: ffffed1015d44592
R10: ffffed1015d44592 R11: 0000000000000000 R12: ffffffff88f45b5a
R13: ffffffff81d83150 R14: ffff8880a2ca5b00 R15: 0000000000000000
 kfree+0xff/0x220 mm/slab.c:3756
 io_sqe_files_unregister+0x238/0x2b0 fs/io_uring.c:5250
 io_ring_ctx_free fs/io_uring.c:6229 [inline]
 io_ring_ctx_wait_and_kill+0x343d/0x3b00 fs/io_uring.c:6310
 io_uring_release+0x5d/0x70 fs/io_uring.c:6318
 __fput+0x2e4/0x740 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:313
 task_work_run+0x176/0x1b0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:164 [inline]
 prepare_exit_to_usermode+0x480/0x5b0 arch/x86/entry/common.c:195
 syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:278
 do_syscall_64+0x11f/0x1c0 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x414f31
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fff6178b100 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000414f31
RDX: 0000001b2c520000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 000000001f9da9b8 R09: 000000001f9da9bc
R10: 00007fff6178b1e0 R11: 0000000000000293 R12: 000000000075bf20
R13: 000000000002d35b R14: 0000000000761908 R15: 000000000075bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..