random: crng init done
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BUG: KASAN: stack-out-of-bounds in __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:28 [inline]
BUG: KASAN: stack-out-of-bounds in __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline]
BUG: KASAN: stack-out-of-bounds in xfrm_dst_hash net/xfrm/xfrm_state.c:60 [inline]
BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x271d/0x2790 net/xfrm/xfrm_state.c:806
Read of size 4 at addr ffff8801ce4a7650 by task syz-executor189/2057

CPU: 1 PID: 2057 Comm: syz-executor189 Not tainted 4.9.129+ #97
 ffff8801ce4a6cc8 ffffffff81b36939 ffffea00073929c0 ffff8801ce4a7650
 0000000000000000 ffff8801ce4a7650 ffff8801ce837cf0 ffff8801ce4a6d00
 ffffffff8150072d ffff8801ce4a7650 0000000000000004 0000000000000000
Call Trace:
 [<ffffffff81b36939>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b36939>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8150072d>] print_address_description+0x6c/0x234 mm/kasan/report.c:256
 [<ffffffff81500b37>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff81500b37>] kasan_report.cold.6+0x242/0x2fe mm/kasan/report.c:412
 [<ffffffff814f2d24>] __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432
 [<ffffffff8264336d>] __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:28 [inline]
 [<ffffffff8264336d>] __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline]
 [<ffffffff8264336d>] xfrm_dst_hash net/xfrm/xfrm_state.c:60 [inline]
 [<ffffffff8264336d>] xfrm_state_find+0x271d/0x2790 net/xfrm/xfrm_state.c:806
 [<ffffffff826292c2>] xfrm_tmpl_resolve_one+0x1d2/0x7a0 net/xfrm/xfrm_policy.c:1483
 [<ffffffff82629aa9>] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1527 [inline]
 [<ffffffff82629aa9>] xfrm_resolve_and_create_bundle+0x219/0x1da0 net/xfrm/xfrm_policy.c:1875
 [<ffffffff8262ca68>] xfrm_lookup+0x238/0xb70 net/xfrm/xfrm_policy.c:2232
 [<ffffffff8262e239>] xfrm_lookup_route+0x39/0x140 net/xfrm/xfrm_policy.c:2354
 [<ffffffff82478ed0>] ip_route_output_flow+0x90/0xa0 net/ipv4/route.c:2448
 [<ffffffff825593bd>] udp_sendmsg+0x13cd/0x1c50 net/ipv4/udp.c:1025
 [<ffffffff826f39fd>] udpv6_sendmsg+0x127d/0x2430 net/ipv6/udp.c:1086
 [<ffffffff82582973>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:770
 [<ffffffff8228d3ab>] sock_sendmsg_nosec net/socket.c:648 [inline]
 [<ffffffff8228d3ab>] sock_sendmsg+0xbb/0x110 net/socket.c:658
 [<ffffffff8228ee0a>] ___sys_sendmsg+0x47a/0x840 net/socket.c:1982
 [<ffffffff82292311>] __sys_sendmmsg+0x161/0x3d0 net/socket.c:2072
 [<ffffffff822925b5>] SYSC_sendmmsg net/socket.c:2103 [inline]
 [<ffffffff822925b5>] SyS_sendmmsg+0x35/0x60 net/socket.c:2098
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82802d13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

The buggy address belongs to the page:
page:ffffea00073929c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x4000000000000000()
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801ce4a7500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
 ffff8801ce4a7580: f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2
>ffff8801ce4a7600: f2 f2 f2 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 00
                                                 ^
 ffff8801ce4a7680: 00 00 00 00 00 00 00 00 f2 f2 f2 00 00 00 00 00
 ffff8801ce4a7700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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