raw: 0000000000000000 ffff888099cc44e0 00000001ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page->pmd_huge_pte)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:2260!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8600 Comm: syz-executor439 Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2260 [inline]
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2257 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:72
Code: ee e8 5c 8e fe ff 66 90 5b 5d 41 5c 41 5d c3 e8 2e 96 40 00 0f 0b e8 27 96 40 00 48 c7 c6 80 20 89 88 48 89 ef e8 f8 90 6f 00 <0f> 0b e8 11 96 40 00 0f 0b 48 c7 c7 a8 6c fc 89 e8 33 6d 81 00 e9
RSP: 0018:ffffc90007fc78c0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000000a82e1 RCX: ffffffff81a54985
RDX: ffff888086af2480 RSI: ffffffff81a549d4 RDI: ffffea0002a0b878
RBP: ffffea0002a0b840 R08: 0000000000000037 R09: ffff8880ae4318e7
R10: ffffffffffffffff R11: 0000000000000000 R12: ffffc90007fc7a20
R13: ffff8880a82e1000 R14: 0000000021000fff R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000981a0d4 CR3: 00000000a7ef5000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __pmd_free_tlb arch/x86/include/asm/pgalloc.h:95 [inline]
 free_pmd_range mm/memory.c:255 [inline]
 free_pud_range mm/memory.c:273 [inline]
 free_p4d_range mm/memory.c:307 [inline]
 free_pgd_range+0xa3f/0xf90 mm/memory.c:387
 free_pgtables+0x230/0x2f0 mm/memory.c:419
 exit_mmap+0x2c0/0x530 mm/mmap.c:3184
 __mmput+0x122/0x470 kernel/fork.c:1077
 mmput+0x53/0x60 kernel/fork.c:1098
 exit_mm kernel/exit.c:483 [inline]
 do_exit+0xa8b/0x29f0 kernel/exit.c:793
 do_group_exit+0x125/0x310 kernel/exit.c:903
 get_signal+0x428/0x1f00 kernel/signal.c:2757
 arch_do_signal+0x82/0x2520 arch/x86/kernel/signal.c:811
 exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
 exit_to_user_mode_prepare+0x1ae/0x200 kernel/entry/common.c:192
 syscall_exit_to_user_mode+0x7e/0x2e0 kernel/entry/common.c:267
 __do_fast_syscall_32+0x6c/0x90 arch/x86/entry/common.c:138
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f72549
Code: Bad RIP value.
RSP: 002b:00000000f7f6d1ec EFLAGS: 00000296 ORIG_RAX: 00000000000000f0
RAX: fffffffffffffe00 RBX: 0000000008120028 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace c87a635fc2f0123c ]---
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2260 [inline]
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2257 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:72
Code: ee e8 5c 8e fe ff 66 90 5b 5d 41 5c 41 5d c3 e8 2e 96 40 00 0f 0b e8 27 96 40 00 48 c7 c6 80 20 89 88 48 89 ef e8 f8 90 6f 00 <0f> 0b e8 11 96 40 00 0f 0b 48 c7 c7 a8 6c fc 89 e8 33 6d 81 00 e9
RSP: 0018:ffffc90007fc78c0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000000a82e1 RCX: ffffffff81a54985
RDX: ffff888086af2480 RSI: ffffffff81a549d4 RDI: ffffea0002a0b878
RBP: ffffea0002a0b840 R08: 0000000000000037 R09: ffff8880ae4318e7
R10: ffffffffffffffff R11: 0000000000000000 R12: ffffc90007fc7a20
R13: ffff8880a82e1000 R14: 0000000021000fff R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000000a8040000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400