================================================================== 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 ffff8801bbf1fb7c by task syz-executor6/8466 CPU: 0 PID: 8466 Comm: syz-executor6 Not tainted 4.4.153-g5e24b4e #26 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 59328e80db5d0f62 ffff8801bbf1fa58 ffffffff81e162ed ffffea0006efc7c0 ffff8801bbf1fb7c 0000000000000000 ffff8801bbf1fb7c ffff8801bbf1fc60 ffff8801bbf1fa90 ffffffff8151b4d9 ffff8801bbf1fb7c Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] print_address_description+0x6c/0x216 mm/kasan/report.c:252 [] kasan_report_error mm/kasan/report.c:351 [inline] [] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408 [] __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:426 [] strlen lib/string.c:481 [inline] [] strlcpy+0x101/0x120 lib/string.c:141 [] xt_copy_counters_from_user+0x13e/0x2e0 net/netfilter/x_tables.c:879 [] do_add_counters+0x96/0x5c0 net/ipv6/netfilter/ip6_tables.c:1343 [] compat_do_ip6t_set_ctl+0xd6/0x140 net/ipv6/netfilter/ip6_tables.c:1736 [] compat_nf_sockopt net/netfilter/nf_sockopt.c:143 [inline] [] compat_nf_setsockopt+0x8b/0x130 net/netfilter/nf_sockopt.c:155 [] compat_ipv6_setsockopt+0x15d/0x1d0 net/ipv6/ipv6_sockglue.c:940 [] compat_udpv6_setsockopt+0x4a/0x90 net/ipv6/udp.c:1446 [] compat_sock_common_setsockopt+0xb4/0x150 net/core/sock.c:2670 [] C_SYSC_setsockopt net/compat.c:385 [inline] [] compat_SyS_setsockopt+0x14c/0x2a0 net/compat.c:368 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a The buggy address belongs to the page: page:ffffea0006efc7c0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x8000000000000000() page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801bbf1fa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801bbf1fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801bbf1fb00: 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 04 ^ ffff8801bbf1fb80: f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801bbf1fc00: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 ================================================================== binder: 8494:8501 got transaction to invalid handle binder: 8494:8501 transaction failed 29201/-22, size 104-8 line 3014 binder: 8494:8501 unknown command 0 binder: 8494:8501 ioctl c0306201 20012000 returned -22