WARNING: CPU: 0 PID: 26011 at mm/mempolicy.c:1745 policy_node mm/mempolicy.c:1745 [inline]
WARNING: CPU: 0 PID: 26011 at mm/mempolicy.c:1745 alloc_pages_vma+0x1bd/0x4a0 mm/mempolicy.c:2043
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 26011 Comm: syz-executor2 Not tainted 4.20.0-rc5-next-20181207+ #163
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 panic+0x2ad/0x632 kernel/panic.c:214
 __warn.cold.8+0x20/0x4f kernel/panic.c:571
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969
RIP: 0010:policy_node mm/mempolicy.c:1745 [inline]
RIP: 0010:alloc_pages_vma+0x1bd/0x4a0 mm/mempolicy.c:2043
Code: 5f 5d c3 e8 b5 94 be ff 45 89 ec 31 ff 41 81 e4 00 00 04 00 44 89 e6 e8 b1 95 be ff 45 85 e4 0f 84 50 ff ff ff e8 93 94 be ff <0f> 0b e9 44 ff ff ff e8 87 94 be ff e8 22 5e ff ff 48 89 c3 e9 6b
RSP: 0018:ffff888180b96dd8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff8881da96f230 RCX: ffffc90006d23000
RDX: 00000000000007f5 RSI: ffffffff81c1631d RDI: 0000000000000005
RBP: ffff888180b96e18 R08: ffff8881bdc42400 R09: ffffed1039b35b97
R10: ffffed1039b35b97 R11: ffff8881cd9adcbb R12: 0000000000040000
R13: 00000000000742ca R14: ffff8881da96f238 R15: 0000000000000002
kobject: 'loop5' (000000003e6d682a): kobject_uevent_env
kobject: 'loop5' (000000003e6d682a): fill_kobj_path: path = '/devices/virtual/block/loop5'
 do_huge_pmd_wp_page+0x12f1/0x3f60 mm/huge_memory.c:1298
kobject: 'loop1' (00000000e42d31eb): kobject_uevent_env
kobject: 'loop1' (00000000e42d31eb): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (000000003e6d682a): kobject_uevent_env
kobject: 'loop5' (000000003e6d682a): fill_kobj_path: path = '/devices/virtual/block/loop5'
 wp_huge_pmd mm/memory.c:3683 [inline]
 __handle_mm_fault+0x2db2/0x5b70 mm/memory.c:3896
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3943
 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline]
 __do_page_fault+0x5f6/0xd70 arch/x86/mm/fault.c:1541
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1572
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0010:__put_user_4+0x1c/0x30 arch/x86/lib/putuser.S:68
Code: 1f 00 c3 90 66 2e 0f 1f 84 00 00 00 00 00 65 48 8b 1c 25 40 ee 01 00 48 8b 9b 18 14 00 00 48 83 eb 03 48 39 d9 73 3c 0f 1f 00 <89> 01 31 c0 0f 1f 00 c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 65 48
RSP: 0018:ffff888180b97cf8 EFLAGS: 00010297
RAX: 0000000000000005 RBX: 00007fffffffeffd RCX: 00000000200006c0
RDX: 00000000000002d2 RSI: ffffffff81b29653 RDI: 0000000000000282
RBP: ffff888180b97df0 R08: 1ffff11030172f7c R09: 0000000000000008
R10: 0000000000000001 R11: ffff8881bdc42400 R12: 0000000000000005
R13: 00000000200006c0 R14: 0000000000000003 R15: dffffc0000000000
kobject: 'loop5' (000000003e6d682a): kobject_uevent_env
kobject: 'loop5' (000000003e6d682a): fill_kobj_path: path = '/devices/virtual/block/loop5'
 __do_sys_socketpair net/socket.c:1459 [inline]
 __se_sys_socketpair net/socket.c:1456 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1456
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fae1e922c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200006c0 R11: 0000000000000246 R12: 00007fae1e9236d4
R13: 00000000004c4de7 R14: 00000000004d8870 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..