netlink: 11 bytes leftover after parsing attributes in process `syz-executor3'.
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: send failed reply for transaction 2, target dead
==================================================================
BUG: KASAN: stack-out-of-bounds in get_frame_pointer arch/x86/include/asm/stacktrace.h:64 [inline]
BUG: KASAN: stack-out-of-bounds in __unwind_start+0x3a7/0x3c0 arch/x86/kernel/unwind_frame.c:76
Read of size 8 at addr ffff8801b27970f8 by task syz-executor1/5309

CPU: 0 PID: 5309 Comm: syz-executor1 Not tainted 4.9.87-g97d7f1c #54
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d96477f0 ffffffff81d95a19 ffffea0006c9e5c0 ffff8801b27970f8
 0000000000000000 ffff8801b27970f8 ffff8801d9647920 ffff8801d9647828
 ffffffff8153e333 ffff8801b27970f8 0000000000000008 0000000000000000
Call Trace:
 [<ffffffff81d95a19>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d95a19>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8153e333>] print_address_description+0x73/0x280 mm/kasan/report.c:252
 [<ffffffff8153e855>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff8153e855>] kasan_report+0x275/0x360 mm/kasan/report.c:408
 [<ffffffff8153e9b4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429
 [<ffffffff810d5397>] get_frame_pointer arch/x86/include/asm/stacktrace.h:64 [inline]
 [<ffffffff810d5397>] __unwind_start+0x3a7/0x3c0 arch/x86/kernel/unwind_frame.c:76
 [<ffffffff8107c639>] unwind_start arch/x86/include/asm/unwind.h:39 [inline]
 [<ffffffff8107c639>] __save_stack_trace+0x59/0xf0 arch/x86/kernel/stacktrace.c:41
 [<ffffffff8107c738>] save_stack_trace_tsk+0x48/0x70 arch/x86/kernel/stacktrace.c:71
 [<ffffffff816c5d16>] proc_pid_stack+0x146/0x230 fs/proc/base.c:466
 [<ffffffff816c74e8>] proc_single_show+0xf8/0x170 fs/proc/base.c:768
 [<ffffffff815e956f>] seq_read+0x32f/0x1290 fs/seq_file.c:240
 [<ffffffff8156ce48>] do_loop_readv_writev.part.17+0xc8/0x2b0 fs/read_write.c:715
 [<ffffffff81570f8d>] do_loop_readv_writev fs/read_write.c:879 [inline]
 [<ffffffff81570f8d>] do_readv_writev+0x5fd/0x740 fs/read_write.c:873
 [<ffffffff81571154>] vfs_readv+0x84/0xc0 fs/read_write.c:897
 [<ffffffff815714f5>] do_preadv+0x115/0x1a0 fs/read_write.c:974
 [<ffffffff815747b0>] SYSC_preadv fs/read_write.c:1024 [inline]
 [<ffffffff815747b0>] SyS_preadv+0x30/0x40 fs/read_write.c:1019
 [<ffffffff81006504>] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b6b53>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

The buggy address belongs to the page:
page:ffffea0006c9e5c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x8000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801b2796f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801b2797000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801b2797080: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
                                                                ^
 ffff8801b2797100: f1 04 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 00 04 f2
 ffff8801b2797180: f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================