------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: hrtimer hint: isotp_rx_timer_handler+0x0/0x170 include/linux/list.h:71 WARNING: CPU: 1 PID: 16746 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 1 PID: 16746 Comm: syz-executor.3 Not tainted 5.13.0-rc7-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 a0 f8 c2 89 4c 89 ee 48 c7 c7 a0 ec c2 89 e8 ad e8 01 05 <0f> 0b 83 05 65 16 f6 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc90000dc0c58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88802bf154c0 RSI: ffffffff815ce3a5 RDI: fffff520001b817d RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815c820e R11: 0000000000000000 R12: ffffffff896da7c0 R13: ffffffff89c2f2e0 R14: ffffffff81648940 R15: dffffc0000000000 FS: 0000000003214400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000544038 CR3: 0000000036af9000 CR4: 0000000000350ee0 Call Trace: __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:1747 [inline] __sk_destruct+0x6c6/0x900 net/core/sock.c:1832 sk_destruct+0xbd/0xe0 net/core/sock.c:1847 __sk_free+0xef/0x3d0 net/core/sock.c:1858 sk_free+0x78/0xa0 net/core/sock.c:1869 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 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 5e d6 40 f8 48 89 ef e8 f6 4e 41 f8 e8 61 41 61 f8 fb bf 01 00 00 00 76 44 35 f8 65 8b 05 6f 46 e8 76 85 c0 74 02 5d c3 e8 2b 9c e6 RSP: 0018:ffffc90002def8a8 EFLAGS: 00000202 RAX: 0000000000000ad5 RBX: 0000000000000000 RCX: 1ffffffff1b927e9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffff8880b9d35640 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817aead8 R11: 0000000000000001 R12: ffff8880b9d35640 R13: ffff88801f91d4c0 R14: 0000000000000000 R15: ffff88802bf154c0 finish_lock_switch kernel/sched/core.c:4093 [inline] finish_task_switch.isra.0+0x15d/0x810 kernel/sched/core.c:4210 context_switch kernel/sched/core.c:4342 [inline] __schedule+0x91e/0x23e0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x2a7/0x570 kernel/futex.c:2606 futex_wait+0x1db/0x5f0 kernel/futex.c:2708 do_futex+0x26a/0x1750 kernel/futex.c:3732 __do_sys_futex kernel/futex.c:3805 [inline] __se_sys_futex kernel/futex.c:3786 [inline] __x64_sys_futex+0x1c6/0x4f0 kernel/futex.c:3786 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 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:00007fffde9f8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000032 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056c044 RBP: 000000000056c044 R08: 00007fffdea3f080 R09: 0000000000000000 R10: 00007fffde9f8f30 R11: 0000000000000246 R12: 00000000000489ef R13: 00000000000003e8 R14: 000000000056bf80 R15: 00000000000489a3