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BUG: KASAN: stack-out-of-bounds in strlen lib/string.c:481 [inline]
BUG: KASAN: stack-out-of-bounds in strlcpy+0x101/0x120 lib/string.c:141
Read of size 1 at addr ffff8801bdda7b0c by task syz-executor2/13026

CPU: 1 PID: 13026 Comm: syz-executor2 Not tainted 4.4.152-ge5c5f1f #25
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 f213bae892e5a2f7 ffff8801bdda79e8 ffffffff81e15fed
 ffffea0006f769c0 ffff8801bdda7b0c 0000000000000000 ffff8801bdda7b0c
 ffff8801bdda7bf0 ffff8801bdda7a20 ffffffff8151b489 ffff8801bdda7b0c
Call Trace:
 [<ffffffff81e15fed>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81e15fed>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff8151b489>] print_address_description+0x6c/0x216 mm/kasan/report.c:252
 [<ffffffff8151b7a8>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff8151b7a8>] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408
 [<ffffffff814fe6d4>] __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:426
 [<ffffffff81e32ff1>] strlen lib/string.c:481 [inline]
 [<ffffffff81e32ff1>] strlcpy+0x101/0x120 lib/string.c:141
 [<ffffffff83167bee>] xt_copy_counters_from_user+0x13e/0x2e0 net/netfilter/x_tables.c:879
 [<ffffffff8339f456>] do_add_counters+0x96/0x5b0 net/ipv4/netfilter/ip_tables.c:1332
 [<ffffffff8339fa46>] compat_do_ipt_set_ctl+0xd6/0x140 net/ipv4/netfilter/ip_tables.c:1735
 [<ffffffff830cfdeb>] compat_nf_sockopt net/netfilter/nf_sockopt.c:143 [inline]
 [<ffffffff830cfdeb>] compat_nf_setsockopt+0x8b/0x130 net/netfilter/nf_sockopt.c:155
 [<ffffffff8322fee7>] compat_ip_setsockopt+0xa7/0xe0 net/ipv4/ip_sockglue.c:1254
 [<ffffffff832d540a>] compat_udp_setsockopt+0x4a/0x90 net/ipv4/udp.c:2172
 [<ffffffff8348d194>] compat_ipv6_setsockopt+0xb4/0x1d0 net/ipv6/ipv6_sockglue.c:923
 [<ffffffff8349bc7a>] compat_udpv6_setsockopt+0x4a/0x90 net/ipv6/udp.c:1446
 [<ffffffff82f2da24>] compat_sock_common_setsockopt+0xb4/0x150 net/core/sock.c:2670
 [<ffffffff830146bc>] C_SYSC_setsockopt net/compat.c:385 [inline]
 [<ffffffff830146bc>] compat_SyS_setsockopt+0x14c/0x2a0 net/compat.c:368
 [<ffffffff81006d94>] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline]
 [<ffffffff81006d94>] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460
 [<ffffffff838cdec3>] sysenter_flags_fixed+0xd/0x1a

The buggy address belongs to the page:
page:ffffea0006f769c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x8000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801bdda7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801bdda7a80: 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00
>ffff8801bdda7b00: 00 04 f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00
                      ^
 ffff8801bdda7b80: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00
 ffff8801bdda7c00: 00 00 00 f2 f2 f2 00 00 00 00 00 00 00 00 00 00
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