binder: 11099:11101 unknown command -841041702
binder: 11099:11101 ioctl c0306201 200000c0 returned -22
==================================================================
BUG: KASAN: slab-out-of-bounds in nla_strlcpy+0x13d/0x150 lib/nlattr.c:314
Read of size 1 at addr ffff8801d885502d by task syz-executor4/11114

CPU: 0 PID: 11114 Comm: syz-executor4 Not tainted 4.17.0-rc6+ #65
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:430
 nla_strlcpy+0x13d/0x150 lib/nlattr.c:314
 nfnl_acct_new+0x574/0xc50 net/netfilter/nfnetlink_acct.c:118
 nfnetlink_rcv_msg+0xdb5/0xff0 net/netfilter/nfnetlink.c:212
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448
 nfnetlink_rcv+0x1fe/0x1ba0 net/netfilter/nfnetlink.c:513
 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
 netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:639
 sock_write_iter+0x35a/0x5a0 net/socket.c:908
 call_write_iter include/linux/fs.h:1784 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x64d/0x960 fs/read_write.c:487
 vfs_write+0x1f8/0x560 fs/read_write.c:549
 ksys_write+0xf9/0x250 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a09
RSP: 002b:00007f211cbe7c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f211cbe86d4 RCX: 0000000000455a09
RDX: 000000000000001f RSI: 0000000020000080 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000077b R14: 00000000006ff428 R15: 0000000000000000

Allocated by task 4566:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 kmem_cache_alloc+0x12e/0x760 mm/slab.c:3554
 kmem_cache_zalloc include/linux/slab.h:691 [inline]
 fill_pool lib/debugobjects.c:134 [inline]
 __debug_object_init+0xbc0/0x12c0 lib/debugobjects.c:377
 debug_object_init+0x16/0x20 lib/debugobjects.c:429
 debug_timer_init kernel/time/timer.c:704 [inline]
 debug_init kernel/time/timer.c:757 [inline]
 init_timer_key+0xa1/0x470 kernel/time/timer.c:806
 inet_csk_init_xmit_timers+0x5a/0xf0 net/ipv4/inet_connection_sock.c:504
 dccp_init_xmit_timers+0x63/0x66 net/dccp/timer.c:252
 dccp_init_sock+0x2ee/0x480 net/dccp/proto.c:203
 dccp_v4_init_sock+0x20/0xa0 net/dccp/ipv4.c:922
 inet_create+0xa11/0x1050 net/ipv4/af_inet.c:378
 __sock_create+0x526/0x920 net/socket.c:1285
 sock_create_kern+0x3b/0x50 net/socket.c:1331
 inet_ctl_sock_create+0xa0/0x210 net/ipv4/af_inet.c:1601
 dccp_v4_init_net+0x58/0x80 net/dccp/ipv4.c:1017
 ops_init+0xff/0x550 net/core/net_namespace.c:128
 setup_net+0x3c5/0x950 net/core/net_namespace.c:313
 copy_net_ns+0x2bc/0x4c0 net/core/net_namespace.c:436
 create_new_namespaces+0x69d/0x8f0 kernel/nsproxy.c:107
 unshare_nsproxy_namespaces+0xc3/0x1f0 kernel/nsproxy.c:206
 ksys_unshare+0x708/0xf90 kernel/fork.c:2408
 __do_sys_unshare kernel/fork.c:2476 [inline]
 __se_sys_unshare kernel/fork.c:2474 [inline]
 __x64_sys_unshare+0x31/0x40 kernel/fork.c:2474
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8801d8855000
 which belongs to the cache debug_objects_cache of size 40
The buggy address is located 5 bytes to the right of
 40-byte region [ffff8801d8855000, ffff8801d8855028)
The buggy address belongs to the page:
page:ffffea0007621540 count:1 mapcount:0 mapping:ffff8801d8855000 index:0xffff8801d8855fb9
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d8855000 ffff8801d8855fb9 0000000100000047
raw: ffffea000627fc60 ffffea0006b395a0 ffff8801da810dc0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d8854f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801d8854f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8801d8855000: 00 00 00 00 00 fc fc 00 00 00 00 00 fc fc 00 00
                                  ^
 ffff8801d8855080: 00 00 00 fc fc 00 00 00 00 00 fc fc 00 00 00 00
 ffff8801d8855100: 00 fc fc 00 00 00 00 00 fc fc 00 00 00 00 00 fc
==================================================================