kauditd_printk_skb: 48 callbacks suppressed
audit: type=1326 audit(1515929396.030:395): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=9485 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000
encrypted_key: master key parameter '' is invalid
==================================================================
BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x30de/0x3210 net/xfrm/xfrm_state.c:1051
Read of size 4 at addr ffff8801a5a4f5d0 by task syz-executor5/9508

CPU: 1 PID: 9508 Comm: syz-executor5 Not tainted 4.15.0-rc7-mm1+ #56
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
 print_address_description+0x73/0x250 mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report+0x23b/0x360 mm/kasan/report.c:412
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432
 xfrm_state_find+0x30de/0x3210 net/xfrm/xfrm_state.c:1051
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:1393 [inline]
 xfrm_tmpl_resolve+0x2ee/0xc40 net/xfrm/xfrm_policy.c:1437
 xfrm_resolve_and_create_bundle+0x184/0x28d0 net/xfrm/xfrm_policy.c:1830
 xfrm_lookup+0xfcb/0x25c0 net/xfrm/xfrm_policy.c:2160
 xfrm_lookup_route+0x39/0x1a0 net/xfrm/xfrm_policy.c:2280
 ip_route_output_flow+0x7c/0xa0 net/ipv4/route.c:2559
 udp_sendmsg+0x19d3/0x2ce0 net/ipv4/udp.c:999
 udpv6_sendmsg+0x757/0x3400 net/ipv6/udp.c:1156
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764
 sock_sendmsg_nosec net/socket.c:630 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:640
 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2020
 __sys_sendmsg+0xe5/0x210 net/socket.c:2054
 SYSC_sendmsg net/socket.c:2065 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2061
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x452cf9
RSP: 002b:00007fe4505bfc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe4505c0700 RCX: 0000000000452cf9
RDX: 0000000000000000 RSI: 00000000201f1000 RDI: 0000000000000013
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007fe4505c09c0 R15: 0000000000000000

The buggy address belongs to the page:
page:ffffea00069693c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x2fffc0000000000()
raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: 0000000000000000 ffffea00069693e0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801a5a4f480: f1 f1 f1 04 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 f2
 ffff8801a5a4f500: f2 f2 f2 f8 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2
>ffff8801a5a4f580: f2 f2 f2 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 00
                                                 ^
 ffff8801a5a4f600: 00 00 00 00 00 00 00 00 f2 f2 f2 00 00 00 00 00
 ffff8801a5a4f680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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