WARNING: CPU: 1 PID: 13907 at mm/mempolicy.c:1745 policy_node mm/mempolicy.c:1745 [inline]
WARNING: CPU: 1 PID: 13907 at mm/mempolicy.c:1745 alloc_pages_vma+0x1bd/0x4a0 mm/mempolicy.c:2043
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 13907 Comm: syz-executor3 Not tainted 4.20.0-rc5+ #143
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/0x55c kernel/panic.c:188
 __warn.cold.8+0x20/0x45 kernel/panic.c:540
 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 35 2f bf ff 45 89 ec 31 ff 41 81 e4 00 00 04 00 44 89 e6 e8 31 30 bf ff 45 85 e4 0f 84 50 ff ff ff e8 13 2f bf ff <0f> 0b e9 44 ff ff ff e8 07 2f bf ff e8 22 5e ff ff 48 89 c3 e9 6b
RSP: 0000:ffff888183456918 EFLAGS: 00010293
RAX: ffff8881d457e080 RBX: ffff8881da96fcf8 RCX: ffffffff81c06c9f
RDX: 0000000000000000 RSI: ffffffff81c06cad RDI: 0000000000000005
RBP: ffff888183456958 R08: ffff8881d457e080 R09: ffffed1037ebce0b
kobject: 'loop4' (000000006be58c29): kobject_uevent_env
R10: ffffed1037ebce0b R11: ffff8881bf5e705b R12: 0000000000040000
R13: 00000000000742ca R14: ffff8881da96fd00 R15: 0000000000000002
 do_huge_pmd_wp_page+0x1373/0x5fc0 mm/huge_memory.c:1299
kobject: 'loop4' (000000006be58c29): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000ac30a498): kobject_uevent_env
kobject: 'loop0' (00000000ac30a498): fill_kobj_path: path = '/devices/virtual/block/loop0'
 wp_huge_pmd mm/memory.c:3666 [inline]
 __handle_mm_fault+0x2ddc/0x5be0 mm/memory.c:3879
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0010:__clear_user+0x3b/0x70 arch/x86/lib/usercopy_64.c:23
Code: f9 be 13 00 00 00 48 c7 c7 a0 47 d8 88 e8 ad 28 d8 f9 0f 1f 00 48 89 d8 48 c1 eb 03 4c 89 e7 83 e0 07 48 89 d9 48 85 c9 74 0f <48> c7 07 00 00 00 00 48 83 c7 08 ff c9 75 f1 48 89 c1 85 c9 74 0a
RSP: 0000:ffff888183457ae8 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000008
RDX: 0000000000000000 RSI: ffffffff81b1b3d3 RDI: 00000000200001c0
RBP: ffff888183457af8 R08: 1ffff1103068af39 R09: 0000000000000008
R10: 0000000000000001 R11: ffff8881d457e080 R12: 00000000200001c0
R13: 000000001fffffc0 R14: 0000000000000001 R15: 00007ffffffff000
 copy_xregs_to_user arch/x86/include/asm/fpu/internal.h:372 [inline]
 copy_fpregs_to_sigframe arch/x86/kernel/fpu/signal.c:126 [inline]
 copy_fpstate_to_sigframe+0x297/0x530 arch/x86/kernel/fpu/signal.c:177
 get_sigframe.isra.11.constprop.12+0x559/0xd30 arch/x86/kernel/signal.c:285
 __setup_rt_frame arch/x86/kernel/signal.c:466 [inline]
 setup_rt_frame arch/x86/kernel/signal.c:706 [inline]
 handle_signal arch/x86/kernel/signal.c:750 [inline]
 do_signal+0xadc/0x21c0 arch/x86/kernel/signal.c:818
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode+0x342/0x3b0 arch/x86/entry/common.c:197
 retint_user+0x8/0x18
RIP: 0033:          (null)
Code: Bad RIP value.
RSP: 002b:0000000020000388 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000457569
RDX: 0000000020000100 RSI: 0000000020000380 RDI: 0000000000000000
RBP: 000000000072bf00 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000020000300 R11: 0000000000000246 R12: 00007fcea14156d4
kobject: 'loop5' (0000000038383518): kobject_uevent_env
R13: 00000000004bdaa6 R14: 00000000004ccc90 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..