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WARNING: CPU: 1 PID: 0 at lib/debugobjects.c:505 debug_print_object+0xb0/0xc4 lib/debugobjects.c:505
ODEBUG: free active (active state 0) object type: hrtimer hint: isotp_rx_timer_handler+0x0/0x54
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<81802550>] (dump_backtrace) from [<818027c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:60000193 r5:00000000 r4:82b58344
[<818027ac>] (show_stack) from [<81809e98>] (__dump_stack lib/dump_stack.c:79 [inline])
[<818027ac>] (show_stack) from [<81809e98>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<81809de0>] (dump_stack) from [<81803358>] (panic+0x130/0x378 kernel/panic.c:231)
 r7:81f48198 r6:82a390a4 r5:00000000 r4:82c6b0d0
[<81803228>] (panic) from [<802446f4>] (__warn+0xb0/0x164 kernel/panic.c:605)
 r3:82a2248c r2:00000000 r1:00000000 r0:81f48198
 r7:000001f9
[<80244644>] (__warn) from [<8180363c>] (warn_slowpath_fmt+0x9c/0xd4 kernel/panic.c:635)
 r7:80807690 r6:000001f9 r5:81fa0950 r4:81fa0910
[<818035a4>] (warn_slowpath_fmt) from [<80807690>] (debug_print_object+0xb0/0xc4 lib/debugobjects.c:505)
 r8:81a042c8 r7:81f6ee40 r6:86984d38 r5:832feb1c r4:82a22bf0
[<808075e0>] (debug_print_object) from [<80808e48>] (__debug_check_no_obj_freed lib/debugobjects.c:987 [inline])
[<808075e0>] (debug_print_object) from [<80808e48>] (debug_check_no_obj_freed+0x1f8/0x244 lib/debugobjects.c:1018)
 r8:00000122 r7:86c14150 r6:81a042c8 r5:86fd8360 r4:86984d38
[<80808c50>] (debug_check_no_obj_freed) from [<8048e308>] (free_pages_prepare mm/page_alloc.c:1276 [inline])
[<80808c50>] (debug_check_no_obj_freed) from [<8048e308>] (__free_pages_ok+0x144/0x618 mm/page_alloc.c:1540)
 r10:00080000 r9:00000000 r8:00008000 r7:00000000 r6:ddff9000 r5:00000003
 r4:de148880
[<8048e1c4>] (__free_pages_ok) from [<804904b4>] (free_the_page mm/page_alloc.c:5062 [inline])
[<8048e1c4>] (__free_pages_ok) from [<804904b4>] (__free_pages+0xac/0xd0 mm/page_alloc.c:5088)
 r10:81329690 r9:81a03bb8 r8:82b09ef0 r7:00000113 r6:ffff8000 r5:00000003
 r4:de148880
[<80490408>] (__free_pages) from [<804b33bc>] (kfree+0x3e8/0x4f8 mm/slub.c:4210)
 r7:00000113 r6:ffff8000 r5:00000003 r4:de148880
[<804b2fd4>] (kfree) from [<81329690>] (sk_prot_free net/core/sock.c:1739 [inline])
[<804b2fd4>] (kfree) from [<81329690>] (__sk_destruct+0x238/0x298 net/core/sock.c:1824)
 r10:83523dc8 r9:81a03bb8 r8:82b09ef0 r7:82bfddbf r6:00000000 r5:86fd8000
 r4:00000000
[<81329458>] (__sk_destruct) from [<81329788>] (sk_destruct net/core/sock.c:1839 [inline])
[<81329458>] (__sk_destruct) from [<81329788>] (__sk_free+0x98/0x14c net/core/sock.c:1850)
 r7:00000000 r6:00000000 r5:86fd8338 r4:86fd8000
[<813296f0>] (__sk_free) from [<81329890>] (sk_free+0x54/0x58 net/core/sock.c:1861)
 r5:00000001 r4:86fd8000
[<8132983c>] (sk_free) from [<816c8bf0>] (sock_put include/net/sock.h:1803 [inline])
[<8132983c>] (sk_free) from [<816c8bf0>] (can_rx_delete_receiver+0x74/0x78 net/can/af_can.c:497)
[<816c8b7c>] (can_rx_delete_receiver) from [<802f29b8>] (rcu_do_batch kernel/rcu/tree.c:2559 [inline])
[<816c8b7c>] (can_rx_delete_receiver) from [<802f29b8>] (rcu_core+0x488/0xe20 kernel/rcu/tree.c:2794)
 r5:00000001 r4:84198dd4
[<802f2530>] (rcu_core) from [<802f34a4>] (rcu_core_si+0x10/0x14 kernel/rcu/tree.c:2807)
 r10:00000002 r9:83522000 r8:82a22498 r7:00000001 r6:00000009 r5:00000002
 r4:82a040a4
[<802f3494>] (rcu_core_si) from [<802012fc>] (__do_softirq+0x204/0x7ac kernel/softirq.c:345)
[<802010f8>] (__do_softirq) from [<8024dff4>] (do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline])
[<802010f8>] (__do_softirq) from [<8024dff4>] (invoke_softirq kernel/softirq.c:228 [inline])
[<802010f8>] (__do_softirq) from [<8024dff4>] (__irq_exit_rcu+0x1d8/0x200 kernel/softirq.c:422)
 r10:83523eb0 r9:83523f18 r8:00000001 r7:00000000 r6:828ad498 r5:00000000
 r4:828aecc0
[<8024de1c>] (__irq_exit_rcu) from [<8024e1a8>] (irq_exit+0x10/0x3c kernel/softirq.c:446)
 r5:00000000 r4:828ad498
[<8024e198>] (irq_exit) from [<802d8734>] (__handle_domain_irq+0xb4/0x120 kernel/irq/irqdesc.c:692)
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (handle_domain_irq include/linux/irqdesc.h:176 [inline])
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (gic_handle_irq+0x84/0xac drivers/irqchip/irq-gic.c:370)
 r10:00000000 r9:83522000 r8:e000200c r7:828ad4bc r6:e0002000 r5:83523f18
 r4:82a22c34
[<8088aeec>] (gic_handle_irq) from [<80200abc>] (__irq_svc+0x5c/0x94 arch/arm/kernel/entry-armv.S:205)
Exception stack(0x83523f18 to 0x83523f60)
3f00:                                                       00000001 81f5a420
3f20: 00000001 8021e080 83522000 00000001 82a22498 82a224d4 00000002 00000000
3f40: 00000000 83523f74 83523f58 83523f68 80209434 80209438 20000013 ffffffff
 r9:83522000 r8:00000002 r7:83523f4c r6:ffffffff r5:20000013 r4:80209438
[<802093f0>] (arch_cpu_idle) from [<81826618>] (default_idle_call+0x50/0x9c kernel/sched/idle.c:112)
[<818265c8>] (default_idle_call) from [<8028deb0>] (cpuidle_idle_call kernel/sched/idle.c:194 [inline])
[<818265c8>] (default_idle_call) from [<8028deb0>] (do_idle+0x26c/0x2f8 kernel/sched/idle.c:300)
[<8028dc44>] (do_idle) from [<8028e35c>] (cpu_startup_entry+0x20/0x24 kernel/sched/idle.c:397)
 r10:00000000 r9:412fc0f1 r8:80003010 r7:83523ff8 r6:82a32300 r5:82b242b0
 r4:00000091
[<8028e33c>] (cpu_startup_entry) from [<802118bc>] (secondary_start_kernel+0x1e0/0x2b0 arch/arm/kernel/smp.c:470)
[<802116dc>] (secondary_start_kernel) from [<80201950>] (__enable_mmu+0x0/0x10 arch/arm/kernel/head.S:399)
 r7:83523ff8 r6:30c0387d r5:00000000 r4:834aa300
Rebooting in 86400 seconds..