------------[ 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: 19 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 1 PID: 19 Comm: ksoftirqd/1 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 60 71 c2 89 4c 89 ee 48 c7 c7 60 65 c2 89 e8 37 18 02 05 <0f> 0b 83 05 e5 0f f6 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc90000daf908 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88801255e140 RSI: ffffffff815c1635 RDI: fffff520001b5f13 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bb46e R11: 0000000000000000 R12: ffffffff896d9140 R13: ffffffff89c26ba0 R14: ffffffff8163bc10 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdaea2ee718 CR3: 0000000069927000 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 kfree+0xd1/0x2c0 mm/slab.c:3802 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 net/core/sock.c:1869 [inline] sock_put include/net/sock.h:1813 [inline] sock_efree+0x11d/0x140 net/core/sock.c:2169 skb_release_head_state+0x9f/0x250 net/core/skbuff.c:713 skb_release_all net/core/skbuff.c:724 [inline] __kfree_skb net/core/skbuff.c:740 [inline] consume_skb net/core/skbuff.c:896 [inline] consume_skb+0x89/0x160 net/core/skbuff.c:890 can_receive+0x394/0x580 net/can/af_can.c:670 can_rcv+0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5459 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5573 process_backlog+0x232/0x6c0 net/core/dev.c:6437 __napi_poll+0xaf/0x440 net/core/dev.c:6985 napi_poll net/core/dev.c:7052 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7139 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294