usbhid: USB HID core driver
ion_heap_create: Heap type is disabled: 1
kasan: CONFIG_KASAN_INLINE enabled
sd 0:0:1:0: [sda] Attached SCSI disk
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x2f1c/0x4350 kernel/locking/lockdep.c:3224
Read of size 8 at addr ffff8801d67519c8 by task system/347

CPU: 1 PID: 347 Comm: system Not tainted 4.9.158+ #48
 ffff8801d5cc79e0 ffffffff81b480e1 0000000000000000 ffffea000759d400
 ffff8801d67519c8 0000000000000008 ffffffff8120ac3c ffff8801d5cc7a18
 ffffffff81502fd5 0000000000000000 ffff8801d67519c8 ffff8801d67519c8
Call Trace:
 [<ffffffff81b480e1>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b480e1>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<ffffffff81502fd5>] print_address_description+0x6f/0x238 mm/kasan/report.c:256
 [<ffffffff8150322a>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff8150322a>] kasan_report mm/kasan/report.c:412 [inline]
 [<ffffffff8150322a>] kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:397
 [<ffffffff814f5424>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 [<ffffffff8120ac3c>] __lock_acquire+0x2f1c/0x4350 kernel/locking/lockdep.c:3224
 [<ffffffff8120cb33>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756
 [<ffffffff82805648>] __raw_spin_lock include/linux/spinlock_api_smp.h:144 [inline]
 [<ffffffff82805648>] _raw_spin_lock+0x38/0x50 kernel/locking/spinlock.c:151
 [<ffffffff821e6c79>] spin_lock include/linux/spinlock.h:302 [inline]
 [<ffffffff821e6c79>] ion_heap_freelist_size drivers/staging/android/ion/ion_heap.c:176 [inline]
 [<ffffffff821e6c79>] ion_heap_deferred_free+0xf9/0x560 drivers/staging/android/ion/ion_heap.c:232
 [<ffffffff811426c8>] kthread+0x278/0x310 kernel/kthread.c:211
 [<ffffffff8280649c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373

Allocated by task 1:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack mm/kasan/kasan.c:505 [inline]
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_kmalloc.part.0+0x62/0xf0 mm/kasan/kasan.c:609
 kasan_kmalloc+0xb7/0xd0 mm/kasan/kasan.c:594
 kmem_cache_alloc_trace+0x115/0x2d0 mm/slub.c:2742
 kmalloc include/linux/slab.h:490 [inline]
 kzalloc include/linux/slab.h:636 [inline]
 ion_system_heap_create+0x42/0x1c0 drivers/staging/android/ion/ion_system_heap.c:334
 ion_heap_create+0x156/0x1b0 drivers/staging/android/ion/ion_heap.c:328
 ion_dummy_init+0x22e/0x3b6 drivers/staging/android/ion/ion_dummy_driver.c:108
 do_one_initcall+0xb1/0x1c0 init/main.c:780
 do_initcall_level init/main.c:846 [inline]
 do_initcalls init/main.c:854 [inline]
 do_basic_setup init/main.c:872 [inline]
 kernel_init_freeable+0x2ff/0x3c3 init/main.c:1018
 kernel_init+0x12/0x163 init/main.c:946
 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373

Freed by task 1:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack mm/kasan/kasan.c:505 [inline]
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_slab_free+0xb0/0x190 mm/kasan/kasan.c:582
 slab_free_hook mm/slub.c:1355 [inline]
 slab_free_freelist_hook mm/slub.c:1377 [inline]
 slab_free mm/slub.c:2958 [inline]
 kfree+0xfb/0x310 mm/slub.c:3878
 ion_system_heap_destroy+0x72/0x90 drivers/staging/android/ion/ion_system_heap.c:369
 ion_heap_destroy+0x6a/0xd0 drivers/staging/android/ion/ion_heap.c:369
 ion_dummy_init+0x30a/0x3b6 drivers/staging/android/ion/ion_dummy_driver.c:118
 do_one_initcall+0xb1/0x1c0 init/main.c:780
 do_initcall_level init/main.c:846 [inline]
 do_initcalls init/main.c:854 [inline]
 do_basic_setup init/main.c:872 [inline]
 kernel_init_freeable+0x2ff/0x3c3 init/main.c:1018
 kernel_init+0x12/0x163 init/main.c:946
 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373

The buggy address belongs to the object at ffff8801d6751900
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 200 bytes inside of
 512-byte region [ffff8801d6751900, ffff8801d6751b00)
The buggy address belongs to the page:
page:ffffea000759d400 count:1 mapcount:0 mapping:          (null) index:0x0 compound_mapcount: 0
flags: 0x4000000000004080(slab|head)
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d6751880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801d6751900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801d6751980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                              ^
 ffff8801d6751a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8801d6751a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================