flags: 0x7ff00000000000()
raw: 007ff00000000000 dead000000000100 ffffea0000000680 0000000000000000
raw: 0000000000000000 ffff8880b499ea50 00000001ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page->pmd_huge_pte)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:2000!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 22065 Comm: syz-executor.1 Not tainted 4.19.198-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:2000 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:81
Code: ee e8 5c ed fd ff 66 90 5b 5d 41 5c 41 5d c3 e8 de 4c 37 00 0f 0b e8 d7 4c 37 00 48 c7 c6 60 dc 67 88 48 89 ef e8 98 d0 5e 00 <0f> 0b e8 c1 4c 37 00 0f 0b 48 c7 c7 78 a4 cf 89 e8 b3 1b 6d 00 e9
RSP: 0000:ffff88800016f838 EFLAGS: 00010293
RAX: ffff888096882480 RBX: 0000000000000107 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff812b3558 RDI: ffffea00000041f8
RBP: ffffea00000041c0 R08: 0000000000000037 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88800016f9b0
R13: ffff888000107000 R14: 0000000021000fff R15: 0000000000000000
FS:  00007f63a32e2700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006e395b CR3: 00000000a908d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __pmd_free_tlb arch/x86/include/asm/pgalloc.h:124 [inline]
 free_pmd_range mm/memory.c:491 [inline]
 free_pud_range mm/memory.c:509 [inline]
 free_p4d_range mm/memory.c:543 [inline]
 free_pgd_range+0x867/0x1020 mm/memory.c:623
 free_pgtables+0x230/0x2f0 mm/memory.c:655
 exit_mmap+0x2c8/0x530 mm/mmap.c:3094
 __mmput kernel/fork.c:1015 [inline]
 mmput+0x14e/0x4a0 kernel/fork.c:1036
 exit_mm kernel/exit.c:549 [inline]
 do_exit+0xaec/0x2be0 kernel/exit.c:857
 do_group_exit+0x125/0x310 kernel/exit.c:967
 get_signal+0x3f2/0x1f70 kernel/signal.c:2589
 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48
RSP: 002b:00007f63a32e2218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000056bf88 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf88
RBP: 000000000056bf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf8c
R13: 00007ffe050367cf R14: 00007f63a32e2300 R15: 0000000000022000
Modules linked in:
---[ end trace b96f6dbd52b3df91 ]---
RIP: 0010:pgtable_pmd_page_dtor include/linux/mm.h:2000 [inline]
RIP: 0010:___pmd_free_tlb+0x108/0x140 arch/x86/mm/pgtable.c:81
Code: ee e8 5c ed fd ff 66 90 5b 5d 41 5c 41 5d c3 e8 de 4c 37 00 0f 0b e8 d7 4c 37 00 48 c7 c6 60 dc 67 88 48 89 ef e8 98 d0 5e 00 <0f> 0b e8 c1 4c 37 00 0f 0b 48 c7 c7 78 a4 cf 89 e8 b3 1b 6d 00 e9
RSP: 0000:ffff88800016f838 EFLAGS: 00010293
RAX: ffff888096882480 RBX: 0000000000000107 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff812b3558 RDI: ffffea00000041f8
RBP: ffffea00000041c0 R08: 0000000000000037 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88800016f9b0
R13: ffff888000107000 R14: 0000000021000fff R15: 0000000000000000
FS:  00007f63a32e2700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006e395b CR3: 00000000a908d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400