------------[ 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: 4861 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 1 PID: 4861 Comm: systemd-udevd Not tainted 5.13.0-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 f8 c2 89 4c 89 ee 48 c7 c7 20 ec c2 89 e8 3d e7 01 05 <0f> 0b 83 05 75 23 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: ffff888013bd8000 RSI: ffffffff815cdfb5 RDI: fffff520001b817d RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815c7e1e R11: 0000000000000000 R12: ffffffff896da7c0 R13: ffffffff89c2f260 R14: ffffffff81648550 R15: dffffc0000000000 FS: 00007f3f03f9a8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a67c2f7678 CR3: 0000000016dc1000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5482 Code: 72 a7 7e 83 f8 01 0f 85 a6 02 00 00 9c 58 f6 c4 02 0f 85 91 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc90000e4f870 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff920001c9f10 RCX: 00000000ef951384 RDX: 1ffff1100277b13d RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902288a7 R10: fffffbfff2045114 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff8bf79860 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:267 [inline] rcu_read_lock include/linux/rcupdate.h:657 [inline] __d_lookup+0xa8/0x710 fs/dcache.c:2421 lookup_fast+0x2d0/0x6d0 fs/namei.c:1587 walk_component+0xc6/0x6a0 fs/namei.c:1938 link_path_walk.part.0+0x712/0xc90 fs/namei.c:2269 link_path_walk fs/namei.c:2193 [inline] path_lookupat+0xb7/0x850 fs/namei.c:2420 filename_lookup+0x1b1/0x570 fs/namei.c:2454 do_readlinkat+0xcd/0x2f0 fs/stat.c:425 __do_sys_readlinkat fs/stat.c:452 [inline] __se_sys_readlinkat fs/stat.c:449 [inline] __x64_sys_readlinkat+0x93/0xf0 fs/stat.c:449 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3f02e0e0ba Code: 48 8b 0d e1 bd 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 0b 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ae bd 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffede58fc88 EFLAGS: 00000202 ORIG_RAX: 000000000000010b RAX: ffffffffffffffda RBX: 000055a67c2b3710 RCX: 00007f3f02e0e0ba RDX: 000055a67c2b3710 RSI: 000055a67c2b36e0 RDI: 00000000ffffff9c RBP: 0000000000000064 R08: 000055a67b858670 R09: 0000000000000070 R10: 0000000000000063 R11: 0000000000000202 R12: 000055a67c2b36e0 R13: 00000000ffffff9c R14: 00007ffede58fce0 R15: 0000000000000063