------------[ cut here ]------------
ODEBUG: free active (active state 1) object type: rcu_head hint:           (null)
WARNING: CPU: 1 PID: 20260 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 20260 Comm: syz-executor.2 Not tainted 4.19.75 #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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
kobject: 'lo' (00000000541c3176): kobject_uevent_env
 __warn.cold+0x20/0x4a kernel/panic.c:540
 report_bug+0x263/0x2b0 lib/bug.c:186
sctp: [Deprecated]: syz-executor.0 (pid 20280) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
kobject: 'lo' (00000000541c3176): fill_kobj_path: path = '/devices/virtual/net/lo'
kobject: 'queues' (0000000087a0a117): kobject_add_internal: parent: 'lo', set: '<NULL>'
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325
kobject: '9p-21' (000000007c3620e2): kobject_add_internal: parent: 'bdi', set: 'devices'
Code: dd 20 56 82 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 20 56 82 87 48 c7 c7 60 4b 82 87 e8 d6 04 19 fe <0f> 0b 83 05 cb 83 17 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff88809f44f9d0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8155dbd6 RDI: ffffed1013e89f2c
RBP: ffff88809f44fa10 R08: ffff88809f9ca040 R09: ffffed1015d23ee3
kobject: '9p-21' (000000007c3620e2): kobject_uevent_env
R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: 0000000000000001
R13: ffffffff8879f200 R14: 0000000000000000 R15: ffff88808ecf56a0
 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
 debug_check_no_obj_freed+0x29f/0x464 lib/debugobjects.c:817
kobject: '9p-21' (000000007c3620e2): fill_kobj_path: path = '/devices/virtual/bdi/9p-21'
 kmem_cache_free+0x18f/0x260 mm/slab.c:3764
 free_task_struct kernel/fork.c:162 [inline]
 free_task+0xdd/0x120 kernel/fork.c:416
kobject: 'queues' (0000000087a0a117): kobject_uevent_env
 __put_task_struct+0x20f/0x4c0 kernel/fork.c:689
 put_task_struct include/linux/sched/task.h:96 [inline]
 finish_task_switch+0x52b/0x780 kernel/sched/core.c:2710
 context_switch kernel/sched/core.c:2829 [inline]
 __schedule+0x86e/0x1dc0 kernel/sched/core.c:3474
kobject: 'queues' (0000000087a0a117): kobject_uevent_env: filter function caused the event to drop!
 schedule+0x92/0x1c0 kernel/sched/core.c:3518
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x201/0x690 kernel/time/hrtimer.c:1688
kobject: 'rx-0' (00000000064c3552): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (00000000064c3552): kobject_uevent_env
 hrtimer_nanosleep+0x2a6/0x570 kernel/time/hrtimer.c:1742
kobject: 'rx-0' (00000000064c3552): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0'
 __do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline]
 __x64_sys_nanosleep+0x1a6/0x220 kernel/time/hrtimer.c:1763
kobject: 'tx-0' (00000000f9c6c5a5): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'tx-0' (00000000f9c6c5a5): kobject_uevent_env
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ed1
kobject: 'tx-0' (00000000f9c6c5a5): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0'
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 d3 fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffcc89c5060 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000081c32 RCX: 0000000000457ed1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffcc89c5070
RBP: 0000000000000001 R08: ffffffffffffffff R09: ffffffffffffffff
kobject: 'ip_vti0' (000000006fdcb711): kobject_cleanup, parent           (null)
R10: 00007ffcc89c5160 R11: 0000000000000293 R12: 000000000075bf20
R13: 000000000075c9a0 R14: 0000000000760f60 R15: 000000000075bf2c
Kernel Offset: disabled

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