RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80af6966d4
------------[ cut here ]------------
R13: 00000000004bfce6 R14: 00000000004d1a58 R15: 0000000000000005
WARNING: CPU: 0 PID: 7040 at arch/x86/mm/pat.c:1020 untrack_pfn+0x1ab/0x210 arch/x86/mm/pat.c:1027
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7043 Comm: syz-executor.1 Not tainted 4.14.171-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold.3+0x105/0x14b lib/fault-inject.c:149
 should_failslab+0xba/0xf0 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 kmem_cache_alloc+0x2cf/0x790 mm/slab.c:3550
 ptlock_alloc+0x1d/0x70 mm/memory.c:4741
 ptlock_init include/linux/mm.h:1752 [inline]
 pgtable_page_ctor include/linux/mm.h:1786 [inline]
 pte_alloc_one+0x46/0xd0 arch/x86/mm/pgtable.c:33
 __pte_alloc+0x1d/0x280 mm/memory.c:656
 copy_pte_range mm/memory.c:1081 [inline]
 copy_pmd_range mm/memory.c:1157 [inline]
 copy_pud_range mm/memory.c:1191 [inline]
 copy_p4d_range mm/memory.c:1213 [inline]
 copy_page_range+0xfed/0x1970 mm/memory.c:1275
 dup_mmap kernel/fork.c:709 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1254 [inline]
 copy_process.part.37+0x5d91/0x66e0 kernel/fork.c:1771
 copy_process kernel/fork.c:1586 [inline]
 _do_fork+0x155/0xbb0 kernel/fork.c:2070
 SYSC_clone kernel/fork.c:2180 [inline]
 SyS_clone+0x14/0x20 kernel/fork.c:2174
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007fe603a39c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fe603a39c90 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe603a3a6d4
R13: 00000000004bfce6 R14: 00000000004d1a58 R15: 0000000000000005
CPU: 0 PID: 7040 Comm: syz-executor.2 Not tainted 4.14.171-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
 panic+0x1b0/0x358 kernel/panic.c:183
 __warn.cold.8+0x25/0x2c kernel/panic.c:547
 report_bug+0x1a4/0x1f3 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 do_error_trap+0x1bd/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:untrack_pfn+0x1ab/0x210 arch/x86/mm/pat.c:1020
RSP: 0018:ffff888080def8f8 EFLAGS: 00010282
RAX: 00000000ffffffea RBX: ffff88809312f840 RCX: 0000000000000000
RDX: 0000000000000004 RSI: 0000000000000001 RDI: ffffffff89383840
RBP: ffff888080def9c8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff888098e4a440 R12: 1ffff110101bdf21
R13: 0000000000000000 R14: ffff888080def9a8 R15: ffff888080defa98
 unmap_single_vma+0x144/0x300 mm/memory.c:1539
 unmap_vmas+0xe2/0x190 mm/memory.c:1590
 exit_mmap+0x249/0x450 mm/mmap.c:3056
 __mmput kernel/fork.c:930 [inline]
 mmput+0xed/0x3c0 kernel/fork.c:951
 dup_mm kernel/fork.c:1215 [inline]
 copy_mm kernel/fork.c:1254 [inline]
 copy_process.part.37+0x5d6f/0x66e0 kernel/fork.c:1771
 copy_process kernel/fork.c:1586 [inline]
 _do_fork+0x155/0xbb0 kernel/fork.c:2070
 SYSC_clone kernel/fork.c:2180 [inline]
 SyS_clone+0x14/0x20 kernel/fork.c:2174
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007faca427cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007faca427cc90 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007faca427d6d4
R13: 00000000004bfce6 R14: 00000000004d1a58 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..