raw: 0000000000000000 ffff888042abc960 00000001ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page->pmd_huge_pte)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:2285!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 16462 Comm: syz-executor.4 Not tainted 5.8.0-rc3-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:2285 [inline]
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2282 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:72
Code: ee e8 dc 92 fe ff 66 90 5b 5d 41 5c 41 5d c3 e8 5e 87 3f 00 0f 0b e8 57 87 3f 00 48 c7 c6 c0 fa 48 88 48 89 ef e8 d8 2f 6d 00 <0f> 0b e8 41 87 3f 00 0f 0b 48 c7 c7 00 e1 b4 89 e8 b3 dc 7e 00 e9
RSP: 0018:ffffc900053178f8 EFLAGS: 00010296
RAX: 0000000000000000 RBX: 0000000000000110 RCX: ffffffff81a17049
RDX: ffff88808de6a180 RSI: ffffffff81a17098 RDI: ffffea0000004438
RBP: ffffea0000004400 R08: 0000000000000037 R09: ffff8880ae720fcb
R10: ffffffffffffffff R11: 0000000000000000 R12: ffffc90005317a58
R13: ffff888000110000 R14: 0000000021000fff R15: 0000000000000000
FS:  00007ffb77a25700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005611adfd99a7 CR3: 000000009a613000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __pmd_free_tlb arch/x86/include/asm/pgalloc.h:118 [inline]
 free_pmd_range mm/memory.c:251 [inline]
 free_pud_range mm/memory.c:269 [inline]
 free_p4d_range mm/memory.c:303 [inline]
 free_pgd_range+0xa3f/0xf90 mm/memory.c:383
 free_pgtables+0x230/0x2f0 mm/memory.c:415
 exit_mmap+0x2c0/0x510 mm/mmap.c:3151
 __mmput+0x122/0x470 kernel/fork.c:1093
 mmput+0x53/0x60 kernel/fork.c:1114
 exit_mm kernel/exit.c:482 [inline]
 do_exit+0xa8f/0x2a40 kernel/exit.c:792
 do_group_exit+0x125/0x310 kernel/exit.c:903
 get_signal+0x428/0x1fc0 kernel/signal.c:2739
 do_signal+0x82/0x2520 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:212 [inline]
 __prepare_exit_to_usermode+0x156/0x1f0 arch/x86/entry/common.c:246
 do_syscall_64+0x6c/0xe0 arch/x86/entry/common.c:368
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb29
Code: Bad RIP value.
RSP: 002b:00007ffb77a24cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000078bf08 RCX: 000000000045cb29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bf08
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffd499bb34f R14: 00007ffb77a259c0 R15: 000000000078bf0c
Modules linked in:
---[ end trace 731cf08682b945c1 ]---
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2285 [inline]
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2282 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:72
Code: ee e8 dc 92 fe ff 66 90 5b 5d 41 5c 41 5d c3 e8 5e 87 3f 00 0f 0b e8 57 87 3f 00 48 c7 c6 c0 fa 48 88 48 89 ef e8 d8 2f 6d 00 <0f> 0b e8 41 87 3f 00 0f 0b 48 c7 c7 00 e1 b4 89 e8 b3 dc 7e 00 e9
RSP: 0018:ffffc900053178f8 EFLAGS: 00010296
RAX: 0000000000000000 RBX: 0000000000000110 RCX: ffffffff81a17049
RDX: ffff88808de6a180 RSI: ffffffff81a17098 RDI: ffffea0000004438
RBP: ffffea0000004400 R08: 0000000000000037 R09: ffff8880ae720fcb
R10: ffffffffffffffff R11: 0000000000000000 R12: ffffc90005317a58
R13: ffff888000110000 R14: 0000000021000fff R15: 0000000000000000
FS:  00007ffb77a25700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe4b9ec800 CR3: 000000008fe00000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400