binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29201
SELinux:  policydb magic number 0x661964a0 does not match expected magic number 0xf97cff8c
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SELinux:  policydb magic number 0x661964a0 does not match expected magic number 0xf97cff8c
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+0x37c/0x3c0 arch/x86/kernel/unwind_frame.c:76
Read of size 8 at addr ffff8801cd0cf818 by task syz-executor5/8661

CPU: 0 PID: 8661 Comm: syz-executor5 Not tainted 4.9.109-ga4230be #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801ccb5f760 ffffffff81eb3e29 ffffea00073433c0 ffff8801cd0cf818
 0000000000000000 ffff8801cd0cf818 ffff8801ccb5f898 ffff8801ccb5f798
 ffffffff81567a89 ffff8801cd0cf818 0000000000000008 0000000000000000
Call Trace:
 [<ffffffff81eb3e29>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb3e29>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81567a89>] print_address_description+0x6c/0x234 mm/kasan/report.c:256
 [<ffffffff81567e93>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff81567e93>] kasan_report.cold.6+0x242/0x2fe mm/kasan/report.c:412
 [<ffffffff8153bae4>] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 [<ffffffff810d31ec>] get_frame_pointer arch/x86/include/asm/stacktrace.h:64 [inline]
 [<ffffffff810d31ec>] __unwind_start+0x37c/0x3c0 arch/x86/kernel/unwind_frame.c:76
 [<ffffffff8107b899>] unwind_start arch/x86/include/asm/unwind.h:39 [inline]
 [<ffffffff8107b899>] __save_stack_trace+0x59/0xf0 arch/x86/kernel/stacktrace.c:41
 [<ffffffff8107b998>] save_stack_trace_tsk+0x48/0x70 arch/x86/kernel/stacktrace.c:71
 [<ffffffff816d7c28>] proc_pid_stack+0x148/0x220 fs/proc/base.c:469
 [<ffffffff816d931d>] proc_single_show+0xfd/0x170 fs/proc/base.c:771
 [<ffffffff815ed2b6>] seq_read+0x4b6/0x12e0 fs/seq_file.c:240
 [<ffffffff8156f315>] do_loop_readv_writev.part.18+0xd5/0x280 fs/read_write.c:718
 [<ffffffff815744c7>] do_loop_readv_writev fs/read_write.c:707 [inline]
 [<ffffffff815744c7>] compat_do_readv_writev+0x567/0x7a0 fs/read_write.c:1091
 [<ffffffff815747e2>] compat_readv+0xe2/0x150 fs/read_write.c:1120
 [<ffffffff81574942>] do_compat_readv+0xf2/0x1d0 fs/read_write.c:1140
 [<ffffffff81577086>] C_SYSC_readv fs/read_write.c:1152 [inline]
 [<ffffffff81577086>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1148
 [<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
 [<ffffffff839fb090>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137

The buggy address belongs to the page:
page:ffffea00073433c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x8000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801cd0cf700: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 02
 ffff8801cd0cf780: f2 f2 f2 f2 f2 f2 f2 04 f2 f2 f2 f2 f2 f2 f2 00
>ffff8801cd0cf800: f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 f2 f2 f2 f2 00
                            ^
 ffff8801cd0cf880: f2 f2 f2 f2 f2 f2 f2 00 00 f2 f2 f2 f2 f2 f2 00
 ffff8801cd0cf900: 00 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00 00 00
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