device lo entered promiscuous mode
==================================================================
BUG: KASAN: stack-out-of-bounds in unwind_get_return_address+0x92/0xa0 arch/x86/kernel/unwind_frame.c:17
Read of size 8 at addr ffff8801d3fe7df8 by task syz-executor7/7382

CPU: 1 PID: 7382 Comm: syz-executor7 Not tainted 4.9.92-g13b40d3 #72
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bb61f7d0 ffffffff81d95109 ffffea00074ff9c0 ffff8801d3fe7df8
 0000000000000000 ffff8801d3fe7df8 0000000000000000 ffff8801bb61f808
 ffffffff8153d5d3 ffff8801d3fe7df8 0000000000000008 0000000000000000
Call Trace:
 [<ffffffff81d95109>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d95109>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8153d5d3>] print_address_description+0x73/0x280 mm/kasan/report.c:256
 [<ffffffff8153dad5>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff8153dad5>] kasan_report+0x255/0x380 mm/kasan/report.c:412
 [<ffffffff8153dc74>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 [<ffffffff810d5f12>] unwind_get_return_address+0x92/0xa0 arch/x86/kernel/unwind_frame.c:17
 [<ffffffff8107c80d>] __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:43
 [<ffffffff8107c8d8>] save_stack_trace_tsk+0x48/0x70 arch/x86/kernel/stacktrace.c:71
 [<ffffffff816c5006>] proc_pid_stack+0x146/0x230 fs/proc/base.c:466
 [<ffffffff816c67d8>] proc_single_show+0xf8/0x170 fs/proc/base.c:768
 [<ffffffff815e87ff>] seq_read+0x32f/0x1290 fs/seq_file.c:240
 [<ffffffff8156c168>] do_loop_readv_writev.part.17+0xc8/0x2b0 fs/read_write.c:715
 [<ffffffff815702ad>] do_loop_readv_writev fs/read_write.c:879 [inline]
 [<ffffffff815702ad>] do_readv_writev+0x5fd/0x740 fs/read_write.c:873
 [<ffffffff81570474>] vfs_readv+0x84/0xc0 fs/read_write.c:897
 [<ffffffff81570596>] do_readv+0xe6/0x250 fs/read_write.c:923
 [<ffffffff81573a67>] SYSC_readv fs/read_write.c:1010 [inline]
 [<ffffffff81573a67>] SyS_readv+0x27/0x30 fs/read_write.c:1007
 [<ffffffff81006504>] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b8593>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

The buggy address belongs to the page:
page:ffffea00074ff9c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x8000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d3fe7c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801d3fe7d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801d3fe7d80: 00 00 f1 f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 f2
                                                                ^
 ffff8801d3fe7e00: f2 f2 f2 f2 f2 f2 00 00 f2 f2 00 00 00 00 00 00
 ffff8801d3fe7e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================