audit: type=1800 audit(1544122334.641:30): pid=5882 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 WARNING: CPU: 0 PID: 6036 at mm/mempolicy.c:1745 policy_node mm/mempolicy.c:1745 [inline] WARNING: CPU: 0 PID: 6036 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: 6036 Comm: syz-executor420 Not tainted 4.20.0-rc5+ #267 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: 0018:ffff8881c0ec7298 EFLAGS: 00010293 RAX: ffff8881c1e060c0 RBX: ffff8881da96f000 RCX: ffffffff81c06c9f RDX: 0000000000000000 RSI: ffffffff81c06cad RDI: 0000000000000005 RBP: ffff8881c0ec72d8 R08: ffff8881c1e060c0 R09: ffffed103b5c5b5f R10: 0000000000000002 R11: ffff8881dae2dafb R12: 0000000000040000 R13: 00000000000742ca R14: ffff8881da96f008 R15: 0000000000000002 do_huge_pmd_anonymous_page+0x59e/0x2030 mm/huge_memory.c:728 create_huge_pmd mm/memory.c:3656 [inline] __handle_mm_fault+0x3c91/0x5be0 mm/memory.c:3860 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: 0018:ffff8881c0ec7cd0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000010 RCX: 0000000000000010 RDX: 0000000000000000 RSI: ffffffff81b1b3d3 RDI: 00000000203e8000 RBP: ffff8881c0ec7ce0 R08: 1ffff110381d8f76 R09: 0000000000000008 R10: 0000000000000001 R11: ffff8881c1e060c0 R12: 00000000203e8000 R13: 00000000203e8000 R14: 00007ffffffff000 R15: 0000000000000000 clear_user+0xb1/0xe0 arch/x86/lib/usercopy_64.c:52 __do_compat_sys_get_mempolicy mm/mempolicy.c:1543 [inline] __se_compat_sys_get_mempolicy mm/mempolicy.c:1520 [inline] __ia32_compat_sys_get_mempolicy+0x204/0x2e0 mm/mempolicy.c:1520 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7ff2a29 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000ffaf87fc EFLAGS: 00000282 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000203e8000 RDX: 0000000000000401 RSI: 00000000208d3000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..