audit: type=1400 audit(1515468944.974:7): avc:  denied  { map } for  pid=3498 comm="syzkaller476379" path="/root/syzkaller476379690" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
WARNING: CPU: 1 PID: 3498 at mm/slab_common.c:1012 kmalloc_slab+0x5d/0x70 mm/slab_common.c:1012
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 3498 Comm: syzkaller476379 Not tainted 4.15.0-rc6-mm1+ #52
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178
 fixup_bug arch/x86/kernel/traps.c:247 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:kmalloc_slab+0x5d/0x70 mm/slab_common.c:1012
RSP: 0018:ffff8801c146f450 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8801c07ad200 RCX: ffffffff84b1a7bc
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000fffffa60
RBP: ffff8801c146f450 R08: 0000000000000000 R09: 1ffff1003828de4d
R10: ffff8801c146f1a0 R11: 0000000000000001 R12: 00000000fffffa60
R13: 00000000fffffa60 R14: 00000000014080c0 R15: ffff8801c07ad680
 __do_kmalloc mm/slab.c:3700 [inline]
 __kmalloc+0x25/0x760 mm/slab.c:3714
 kmalloc include/linux/slab.h:520 [inline]
 kzalloc include/linux/slab.h:704 [inline]
 xfrm_alloc_replay_state_esn net/xfrm/xfrm_user.c:442 [inline]
 xfrm_state_construct net/xfrm/xfrm_user.c:608 [inline]
 xfrm_add_sa+0x1b79/0x33e0 net/xfrm/xfrm_user.c:646
 xfrm_user_rcv_msg+0x422/0x860 net/xfrm/xfrm_user.c:2591
 netlink_rcv_skb+0x224/0x470 net/netlink/af_netlink.c:2441
 xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2599
 netlink_unicast_kernel net/netlink/af_netlink.c:1308 [inline]
 netlink_unicast+0x4c4/0x6b0 net/netlink/af_netlink.c:1334
 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1897
 sock_sendmsg_nosec net/socket.c:628 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:638
 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2018
 __sys_sendmsg+0xe5/0x210 net/socket.c:2052
 SYSC_sendmsg net/socket.c:2063 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2059
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x440029
RSP: 002b:00007ffcd7b3a598 EFLAGS: 00000203 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029
RDX: 0000000000000000 RSI: 0000000020004000 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401990
R13: 0000000000401a20 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..