SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=21227 comm=syz-executor1
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BUG: KASAN: out-of-bounds in unwind_get_return_address+0x98/0xb0 arch/x86/kernel/unwind_frame.c:17
Read of size 8 at addr ffff8801995578d8 by task syz-executor2/21210

CPU: 0 PID: 21210 Comm: syz-executor2 Not tainted 4.9.104-g135beb9 #40
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c8b178a8 ffffffff81eb44c9 ffffea00066555c0 ffff8801995578d8
 0000000000000000 ffff8801995578e0 ffff8801d93d3640 ffff8801c8b178e0
 ffffffff81567e49 ffff8801995578d8 0000000000000008 0000000000000000
Call Trace:
 [<ffffffff81eb44c9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb44c9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81567e49>] print_address_description+0x6c/0x234 mm/kasan/report.c:256
 [<ffffffff81568253>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff81568253>] kasan_report.cold.6+0x242/0x2fe mm/kasan/report.c:412
 [<ffffffff8153bea4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 [<ffffffff810d2c08>] unwind_get_return_address+0x98/0xb0 arch/x86/kernel/unwind_frame.c:17
 [<ffffffff8107b9ed>] __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:43
 [<ffffffff8107bab8>] save_stack_trace_tsk+0x48/0x70 arch/x86/kernel/stacktrace.c:71
 [<ffffffff816d7fe8>] proc_pid_stack+0x148/0x220 fs/proc/base.c:469
 [<ffffffff816d96dd>] proc_single_show+0xfd/0x170 fs/proc/base.c:771
 [<ffffffff815ed676>] seq_read+0x4b6/0x12e0 fs/seq_file.c:240
 [<ffffffff81571165>] __vfs_read+0x115/0x570 fs/read_write.c:449
 [<ffffffff81572930>] vfs_read+0x120/0x380 fs/read_write.c:472
 [<ffffffff81576d75>] SYSC_pread64 fs/read_write.c:626 [inline]
 [<ffffffff81576d75>] SyS_pread64+0x145/0x170 fs/read_write.c:613
 [<ffffffff8111ac49>] sys32_pread+0x39/0x50 arch/x86/ia32/sys_ia32.c:179
 [<ffffffff81006da7>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006da7>] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387
 [<ffffffff839fb210>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137

The buggy address belongs to the page:
page:ffffea00066555c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x8000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff880199557780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff880199557800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff880199557880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                       ^
 ffff880199557900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff880199557980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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