kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle kernel paging request at ffffea00073df600
PGD 21ffed067 P4D 21ffed067 PUD 21ffec067 PMD 800000021e8001e3 
Oops: 0011 [#1] SMP KASAN
CPU: 0 PID: 1534 Comm: kswapd0 Not tainted 4.18.0-rc4-next-20180712+ #5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0xffffea00073df600
Code: ff ff 00 04 00 00 00 00 ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 fc ff 02 00 01 00 00 00 00 ad de 00 02 00 00 00 00 
RSP: 0018:ffff8801d3e87310 EFLAGS: 00010246
RAX: ffffea00073df600 RBX: dffffc0000000000 RCX: ffffffff81a1b96d
RDX: 1ffff1003a5c0e86 RSI: ffff8801d3e87590 RDI: ffff8801d2e07430
RBP: ffff8801d3e87500 R08: ffff8801d3e76140 R09: ffffed003ae39498
R10: ffffed003ae39498 R11: ffff8801d71ca4c7 R12: ffff8801d3e87590
R13: ffff8801d2e07430 R14: ffff8801d2e07458 R15: ffffea00075a2e00
FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea00073df600 CR3: 0000000196beb000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 shrink_slab_memcg mm/vmscan.c:598 [inline]
 shrink_slab+0x861/0xa60 mm/vmscan.c:671
 shrink_node+0x429/0x16a0 mm/vmscan.c:2735
 kswapd_shrink_node mm/vmscan.c:3457 [inline]
 balance_pgdat+0x7ca/0x1010 mm/vmscan.c:3567
 kswapd+0x82e/0x12f0 mm/vmscan.c:3789
 kthread+0x345/0x410 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
CR2: ffffea00073df600
---[ end trace 4193c8a77915f27e ]---
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle kernel paging request at ffffea00073df600
RIP: 0010:0xffffea00073df600
PGD 21ffed067 
Code: 
P4D 21ffed067 
ff 
PUD 21ffec067 
ff 
PMD 800000021e8001e3 
00 
04 
Oops: 0011 [#2] SMP KASAN
00 
CPU: 1 PID: 19154 Comm: syz-executor6 Tainted: G      D           4.18.0-rc4-next-20180712+ #5
00 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
00 
RIP: 0010:0xffffea00073df600
00 
Code: 
ad 
ff 
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ff 
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04 
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ad 
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RSP: 0018:ffff8801d3e87310 EFLAGS: 00010246
00 
02 
RAX: ffffea00073df600 RBX: dffffc0000000000 RCX: ffffffff81a1b96d
00 
RDX: 1ffff1003a5c0e86 RSI: ffff8801d3e87590 RDI: ffff8801d2e07430
00 
RBP: ffff8801d3e87500 R08: ffff8801d3e76140 R09: ffffed003ae39498
00 
R10: ffffed003ae39498 R11: ffff8801d71ca4c7 R12: ffff8801d3e87590
00 
R13: ffff8801d2e07430 R14: ffff8801d2e07458 R15: ffffea00075a2e00
FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
RSP: 0018:ffff8801cf56e0b0 EFLAGS: 00010246
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea00073df600 CR3: 0000000196beb000 CR4: 00000000001406f0
RAX: ffffea00073df600 RBX: dffffc0000000000 RCX: ffffffff81a1b96d
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
RDX: 1ffff1003a5c0e86 RSI: ffff8801cf56e330 RDI: ffff8801d2e07430
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
RBP: ffff8801cf56e2a0 R08: ffff88019b6f4280 R09: ffffed003ae39410