==================================================================
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket
BUG: KASAN: slab-out-of-bounds in pfkey_msg2xfrm_state net/key/af_key.c:1227 [inline]
BUG: KASAN: slab-out-of-bounds in pfkey_add+0x145d/0x3220 net/key/af_key.c:1506
Read of size 512 at addr ffff8800b3848a18 by task syz-executor2/3299

CPU: 0 PID: 3299 Comm: syz-executor2 Not tainted 4.4.132-g4b08356 #48
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 8e87797b3b5274dd ffff8800b29176c0 ffffffff81e0dfed
 ffffea0002ce1200 ffff8800b3848a18 0000000000000000 ffff8800b3848c00
 ffff8800b3848a00 ffff8800b29176f8 ffffffff8151527c ffff8800b3848a18
Call Trace:
 [<ffffffff81e0dfed>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81e0dfed>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff8151527c>] print_address_description+0x6c/0x216 mm/kasan/report.c:252
 [<ffffffff8151559b>] kasan_report_error mm/kasan/report.c:351 [inline]
 [<ffffffff8151559b>] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408
 [<ffffffff814f801f>] check_memory_region_inline mm/kasan/kasan.c:325 [inline]
 [<ffffffff814f801f>] check_memory_region+0x14f/0x1b0 mm/kasan/kasan.c:332
 [<ffffffff814f8563>] memcpy+0x23/0x50 mm/kasan/kasan.c:367
 [<ffffffff8358522d>] pfkey_msg2xfrm_state net/key/af_key.c:1227 [inline]
 [<ffffffff8358522d>] pfkey_add+0x145d/0x3220 net/key/af_key.c:1506
 [<ffffffff835898c1>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff8358b0f6>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82f1ce0c>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82f1ce0c>] sock_sendmsg+0xcc/0x110 net/socket.c:635
 [<ffffffff82f1e8d5>] ___sys_sendmsg+0x745/0x880 net/socket.c:1962
 [<ffffffff82f20976>] __sys_sendmsg+0xd6/0x190 net/socket.c:1996
 [<ffffffff8300a5aa>] C_SYSC_sendmsg net/compat.c:720 [inline]
 [<ffffffff8300a5aa>] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:718
 [<ffffffff81006d96>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d96>] do_fast_syscall_32+0x326/0x8b0 arch/x86/entry/common.c:459
 [<ffffffff838c1bea>] sysenter_flags_fixed+0xd/0x17

Allocated by task 3299:
 [<ffffffff810341d6>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814f8143>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814f8427>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814f8427>] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:616
 [<ffffffff814f8c04>] kasan_krealloc+0x64/0x80 mm/kasan/kasan.c:654
 [<ffffffff814f1dfa>] ksize+0x8a/0xf0 mm/slub.c:3727
 [<ffffffff82f36d03>] __alloc_skb+0x133/0x600 net/core/skbuff.c:237
 [<ffffffff8358aeae>] alloc_skb include/linux/skbuff.h:815 [inline]
 [<ffffffff8358aeae>] pfkey_sendmsg+0xfe/0xae0 net/key/af_key.c:3665
 [<ffffffff82f1ce0c>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82f1ce0c>] sock_sendmsg+0xcc/0x110 net/socket.c:635
 [<ffffffff82f1e8d5>] ___sys_sendmsg+0x745/0x880 net/socket.c:1962
 [<ffffffff82f20976>] __sys_sendmsg+0xd6/0x190 net/socket.c:1996
 [<ffffffff8300a5aa>] C_SYSC_sendmsg net/compat.c:720 [inline]
 [<ffffffff8300a5aa>] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:718
 [<ffffffff81006d96>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d96>] do_fast_syscall_32+0x326/0x8b0 arch/x86/entry/common.c:459
 [<ffffffff838c1bea>] sysenter_flags_fixed+0xd/0x17

Freed by task 1409:
 [<ffffffff810341d6>] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63
 [<ffffffff814f8143>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
 [<ffffffff814f8a72>] set_track mm/kasan/kasan.c:524 [inline]
 [<ffffffff814f8a72>] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589
 [<ffffffff814f5f74>] slab_free_hook mm/slub.c:1383 [inline]
 [<ffffffff814f5f74>] slab_free_freelist_hook mm/slub.c:1405 [inline]
 [<ffffffff814f5f74>] slab_free mm/slub.c:2859 [inline]
 [<ffffffff814f5f74>] kfree+0xf4/0x310 mm/slub.c:3749
 [<ffffffff82f35de4>] skb_free_head net/core/skbuff.c:571 [inline]
 [<ffffffff82f35de4>] skb_release_data+0x304/0x3b0 net/core/skbuff.c:602
 [<ffffffff82f35eda>] skb_release_all+0x4a/0x60 net/core/skbuff.c:661
 [<ffffffff82f364e3>] __kfree_skb net/core/skbuff.c:675 [inline]
 [<ffffffff82f364e3>] consume_skb+0xf3/0x3d0 net/core/skbuff.c:748
 [<ffffffff830b7d21>] netlink_unicast_kernel net/netlink/af_netlink.c:1271 [inline]
 [<ffffffff830b7d21>] netlink_unicast+0x4f1/0x700 net/netlink/af_netlink.c:1296
 [<ffffffff830b86c5>] netlink_sendmsg+0x795/0xc30 net/netlink/af_netlink.c:1852
 [<ffffffff82f1ce0c>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82f1ce0c>] sock_sendmsg+0xcc/0x110 net/socket.c:635
 [<ffffffff82f1e8d5>] ___sys_sendmsg+0x745/0x880 net/socket.c:1962
 [<ffffffff82f20976>] __sys_sendmsg+0xd6/0x190 net/socket.c:1996
 [<ffffffff8300afff>] C_SYSC_sendmsg net/compat.c:720 [inline]
 [<ffffffff8300afff>] compat_SyS_sendmsg net/compat.c:718 [inline]
 [<ffffffff8300afff>] C_SYSC_socketcall net/compat.c:842 [inline]
 [<ffffffff8300afff>] compat_SyS_socketcall+0x7bf/0xb60 net/compat.c:769
 [<ffffffff81006d96>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d96>] do_fast_syscall_32+0x326/0x8b0 arch/x86/entry/common.c:459
 [<ffffffff838c1bea>] sysenter_flags_fixed+0xd/0x17

The buggy address belongs to the object at ffff8800b3848a00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 24 bytes inside of
 512-byte region [ffff8800b3848a00, ffff8800b3848c00)
The buggy address belongs to the page:
page:ffffea0002ce1200 count:1 mapcount:-2146697203 mapping:          (null) index:0x0
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17544 at lib/debugobjects.c:263 debug_print_object+0x181/0x210 lib/debugobjects.c:260()
ODEBUG: deactivate not available (active state 0) object type: hrtimer hint: 0xdead000000000200