nla_parse: 10 callbacks suppressed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
WARNING: can't dereference registers at 1ffff11015d40f8e for ip apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793
==================================================================
BUG: KASAN: stack-out-of-bounds in deref_stack_regs arch/x86/kernel/unwind_orc.c:311 [inline]
BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x146f/0x17d0 arch/x86/kernel/unwind_orc.c:444
Read of size 8 at addr ffff8881fddffaa0 by task syz-executor.3/12849

CPU: 0 PID: 12849 Comm: syz-executor.3 Not tainted 4.14.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430
 deref_stack_regs arch/x86/kernel/unwind_orc.c:311 [inline]
 unwind_next_frame+0x146f/0x17d0 arch/x86/kernel/unwind_orc.c:444
 perf_callchain_kernel+0x38c/0x520 arch/x86/events/core.c:2343
 get_perf_callchain+0x2df/0x740 kernel/events/callchain.c:217
 perf_callchain+0x147/0x190 kernel/events/callchain.c:190
 perf_prepare_sample+0xd77/0x1380 kernel/events/core.c:6162
 __perf_event_output kernel/events/core.c:6278 [inline]
 perf_event_output_forward+0xc9/0x1f0 kernel/events/core.c:6296
 __perf_event_overflow+0x113/0x310 kernel/events/core.c:7541
 perf_swevent_overflow kernel/events/core.c:7617 [inline]
 perf_swevent_event+0x299/0x460 kernel/events/core.c:7645
 perf_tp_event+0x540/0x6e0 kernel/events/core.c:8079
 perf_trace_run_bpf_submit+0x119/0x200 kernel/events/core.c:8049
 perf_trace_lock+0x2d6/0x490 include/trace/events/lock.h:39
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x4df/0x870 kernel/locking/lockdep.c:4016
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_unlock_irqrestore+0x1b/0xe0 kernel/locking/spinlock.c:192
 debug_object_assert_init lib/debugobjects.c:663 [inline]
 debug_object_assert_init+0x22d/0x2d0 lib/debugobjects.c:627
 debug_timer_assert_init kernel/time/timer.c:708 [inline]
 debug_assert_init kernel/time/timer.c:756 [inline]
 del_timer+0x5d/0xe0 kernel/time/timer.c:1151
 try_to_grab_pending+0x243/0x610 kernel/workqueue.c:1225
 __cancel_work_timer+0x90/0x460 kernel/workqueue.c:2923
 pm_qos_remove_request+0x5e/0x460 kernel/power/qos.c:538
 snd_pcm_release_substream.part.0+0x23f/0x2d0 sound/core/pcm_native.c:2384
 snd_pcm_release_substream+0x4d/0x60 sound/core/pcm_native.c:2372
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2383 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2375 [inline]
 snd_pcm_oss_release+0x12c/0x2f0 sound/core/oss/pcm_oss.c:2563
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45de59
RSP: 002b:00007f35ef03bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffea RBX: 00000000000224c0 RCX: 000000000045de59
RDX: 0000000000046901 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007fff38e58c2f R14: 00007f35ef03c9c0 R15: 000000000118bf2c

The buggy address belongs to the page:
page:ffffea0007f77fc0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x57ffe0000000000()
raw: 057ffe0000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: dead000000000100 dead000000000200 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881fddff980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 f1 f1 04 f2
 ffff8881fddffa00: 00 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 f1 f1
>ffff8881fddffa80: f1 f1 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00
                               ^
 ffff8881fddffb00: 00 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 f3 f3
 ffff8881fddffb80: f3 f3 f3 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f3
==================================================================