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ODEBUG: free active (active state 0) object type: hrtimer hint: isotp_rx_timer_handler+0x0/0x170 include/linux/list.h:71
WARNING: CPU: 0 PID: 14278 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 14278 Comm: syz-executor.5 Not tainted 5.13.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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 20 03 c3 89 4c 89 ee 48 c7 c7 20 f7 c2 89 e8 8d 8e 04 05 <0f> 0b 83 05 05 4e f6 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc90000007c78 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff888065089c40 RSI: ffffffff815ce2a5 RDI: fffff52000000f81
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815c810e R11: 0000000000000000 R12: ffffffff896da7c0
R13: ffffffff89c2fd60 R14: ffffffff816487b0 R15: dffffc0000000000
FS:  00007f1a2eec6700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cfa8b1f830 CR3: 0000000029d96000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __debug_check_no_obj_freed lib/debugobjects.c:987 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1018
 free_pages_prepare mm/page_alloc.c:1303 [inline]
 __free_pages_ok+0x254/0xce0 mm/page_alloc.c:1572
 sk_prot_free net/core/sock.c:1760 [inline]
 __sk_destruct+0x6c6/0x900 net/core/sock.c:1845
 sk_destruct+0xbd/0xe0 net/core/sock.c:1860
 __sk_free+0xef/0x3d0 net/core/sock.c:1871
 sk_free+0x78/0xa0 net/core/sock.c:1882
 sock_put include/net/sock.h:1813 [inline]
 can_rx_delete_receiver+0xbd/0xf0 net/can/af_can.c:497
 rcu_do_batch kernel/rcu/tree.c:2558 [inline]
 rcu_core+0x7ab/0x13b0 kernel/rcu/tree.c:2793
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 do_softirq.part.0+0xd9/0x130 kernel/softirq.c:460
 </IRQ>
 do_softirq kernel/softirq.c:452 [inline]
 __local_bh_enable_ip+0x102/0x120 kernel/softirq.c:384
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 get_next_corpse net/netfilter/nf_conntrack_core.c:2233 [inline]
 nf_ct_iterate_cleanup+0x15a/0x450 net/netfilter/nf_conntrack_core.c:2256
 nf_ct_iterate_cleanup_net net/netfilter/nf_conntrack_core.c:2344 [inline]
 nf_ct_iterate_cleanup_net+0x290/0x3f0 net/netfilter/nf_conntrack_core.c:2328
 masq_device_event+0xae/0xe0 net/netfilter/nf_nat_masquerade.c:88
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2121
 call_netdevice_notifiers_extack net/core/dev.c:2133 [inline]
 call_netdevice_notifiers net/core/dev.c:2147 [inline]
 dev_close_many+0x2ff/0x620 net/core/dev.c:1722
 unregister_netdevice_many+0x3ff/0x1790 net/core/dev.c:11032
 unregister_netdevice_queue+0x2dd/0x3c0 net/core/dev.c:10989
 unregister_netdevice include/linux/netdevice.h:2969 [inline]
 __tun_detach+0x105a/0x13d0 drivers/net/tun.c:670
 tun_detach drivers/net/tun.c:687 [inline]
 tun_chr_close+0xd9/0x180 drivers/net/tun.c:3397
 __fput+0x288/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x281/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1a2eec6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000020000040 RSI: 00000000400454ca RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffe89b36aaf R14: 00007f1a2eec6300 R15: 0000000000022000