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ODEBUG: free active (active state 0) object: ffff8880129f4490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x150 include/linux/skbuff.h:2927
WARNING: CPU: 3 PID: 61 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 3 UID: 0 PID: 61 Comm: kworker/3:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 41 56 48 8b 14 dd 20 7f f0 8b 4c 89 e6 48 c7 c7 a0 73 f0 8b e8 af e0 ce fc 90 <0f> 0b 90 90 58 83 05 b6 ca d5 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0018:ffffc900006f8a18 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff817b3ee8
RDX: ffff888021bf0000 RSI: ffffffff817b3ef5 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8bf07a40
R13: ffffffff8b901fe0 R14: ffffffff8a4d6ce0 R15: ffffc900006f8b18
FS: 0000000000000000(0000) GS:ffff8880d6d0a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f784ed11000 CR3: 0000000024e77000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000042
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
debug_check_no_obj_freed+0x4b7/0x600 lib/debugobjects.c:1129
slab_free_hook mm/slub.c:2470 [inline]
slab_free mm/slub.c:6630 [inline]
kfree+0x291/0x6d0 mm/slub.c:6837
rose_neigh_put include/net/rose.h:166 [inline]
rose_timer_expiry+0x53f/0x630 net/rose/rose_timer.c:183
call_timer_fn+0x19a/0x620 kernel/time/timer.c:1747
expire_timers kernel/time/timer.c:1798 [inline]
__run_timers+0x6ef/0x960 kernel/time/timer.c:2372
__run_timer_base kernel/time/timer.c:2384 [inline]
__run_timer_base kernel/time/timer.c:2376 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2393
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1052
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:check_preemption_disabled+0x8/0xe0 lib/smp_processor_id.c:14
Code: 41 08 85 c0 74 04 90 0f 0b 90 e9 53 fc ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 54 55 53 48 83 ec 08 <65> 8b 1d f5 05 41 08 65 8b 05 ea 05 41 08 a9 ff ff ff 7f 74 0f 48
RSP: 0018:ffffc90000cf7318 EFLAGS: 00000296
RAX: 0000000000000001 RBX: ffffc90000cf74b8 RCX: ffffc90000cf8001
RDX: ffffc90000cf74c0 RSI: ffffffff8bf06dc0 RDI: ffffffff8bf06e00
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000062dd R12: ffffc90000cf7468
R13: ffffc90000cf7418 R14: ffffc90000cf74b8 R15: ffffc90000cf744c
rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:751
rcu_read_unlock include/linux/rcupdate.h:895 [inline]
class_rcu_destructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0xa86/0x20a0 arch/x86/kernel/unwind_orc.c:479
__unwind_start+0x45f/0x7f0 arch/x86/kernel/unwind_orc.c:758
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x73/0x100 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:559
__call_rcu_common.constprop.0+0xa5/0xa10 kernel/rcu/tree.c:3123
kernfs_put.part.0+0x162/0x640 fs/kernfs/dir.c:591
kernfs_put fs/kernfs/dir.c:1724 [inline]
kernfs_remove_by_name_ns+0xdf/0x110 fs/kernfs/dir.c:1718
kernfs_remove_by_name include/linux/kernfs.h:633 [inline]
sysfs_unmerge_group+0xe7/0x170 fs/sysfs/group.c:402
rpm_sysfs_remove drivers/base/power/sysfs.c:823 [inline]
dpm_sysfs_remove+0x7f/0xb0 drivers/base/power/sysfs.c:832
device_del+0x1a0/0x9f0 drivers/base/core.c:3853
device_unregister+0x1d/0xc0 drivers/base/core.c:3919
usb_remove_ep_devs+0x42/0x80 drivers/usb/core/endpoint.c:189
usb_disconnect+0x56b/0x9c0 drivers/usb/core/hub.c:2365
hub_port_connect drivers/usb/core/hub.c:5406 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5706 [inline]
port_event drivers/usb/core/hub.c:5870 [inline]
hub_event+0x1c81/0x4fe0 drivers/usb/core/hub.c:5952
process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
process_scheduled_works kernel/workqueue.c:3346 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 41 08 85 c0 74 04 90 or %al,-0x6ffb8b40(%r13)
7: 0f 0b ud2
9: 90 nop
a: e9 53 fc ff ff jmp 0xfffffc62
f: 0f 1f 00 nopl (%rax)
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 41 54 push %r12
24: 55 push %rbp
25: 53 push %rbx
26: 48 83 ec 08 sub $0x8,%rsp
* 2a: 65 8b 1d f5 05 41 08 mov %gs:0x84105f5(%rip),%ebx # 0x8410626 <-- trapping instruction
31: 65 8b 05 ea 05 41 08 mov %gs:0x84105ea(%rip),%eax # 0x8410622
38: a9 ff ff ff 7f test $0x7fffffff,%eax
3d: 74 0f je 0x4e
3f: 48 rex.W