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kernel BUG at mm/hugetlb.c:1162!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 3 UID: 0 PID: 6656 Comm: syz.0.57 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:resv_map_release mm/hugetlb.c:1162 [inline]
RIP: 0010:resv_map_release+0x1e2/0x280 mm/hugetlb.c:1147
Code: 9f 9c ff 48 85 db 75 1c e8 db a4 9c ff 48 8b 3c 24 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 24 c8 fa ff e8 bf a4 9c ff 90 <0f> 0b 4c 89 f7 e8 34 8a 06 00 e9 38 ff ff ff 48 89 ef e8 37 89 06
RSP: 0018:ffffc90003ecfb08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff82225a7b
RDX: ffff88805435a4c0 RSI: ffffffff82225aa1 RDI: 0000000000000007
RBP: ffff88802dba6c60 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88805435aff0 R12: ffff88802dba6c60
R13: ffff88802dba6c60 R14: ffff88802dba6c60 R15: ffff888055944908
FS:  0000000000000000(0000) GS:ffff8880d6bf1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020800000 CR3: 0000000055982000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 hugetlb_vm_op_close+0x5c8/0x720 mm/hugetlb.c:4756
 vma_close mm/internal.h:190 [inline]
 remove_vma+0x88/0x160 mm/vma.c:463
 exit_mmap+0x507/0xb60 mm/mmap.c:1302
 __mmput+0x12a/0x410 kernel/fork.c:1173
 mmput+0x62/0x70 kernel/fork.c:1196
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x7d7/0x2bd0 kernel/exit.c:959
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
 x64_sys_call+0x151c/0x1740 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f09ffb7e719
Code: Unable to access opcode bytes at 0x7f09ffb7e6ef.
RSP: 002b:00007fff740535b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f09ffb7e719
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff7405360c R08: 00007fff7405369f R09: 000000000001a0da
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000032
R13: 000000000001a0da R14: 000000000001a0c1 R15: 00007fff74053660
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:resv_map_release mm/hugetlb.c:1162 [inline]
RIP: 0010:resv_map_release+0x1e2/0x280 mm/hugetlb.c:1147
Code: 9f 9c ff 48 85 db 75 1c e8 db a4 9c ff 48 8b 3c 24 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 24 c8 fa ff e8 bf a4 9c ff 90 <0f> 0b 4c 89 f7 e8 34 8a 06 00 e9 38 ff ff ff 48 89 ef e8 37 89 06
RSP: 0018:ffffc90003ecfb08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff82225a7b
RDX: ffff88805435a4c0 RSI: ffffffff82225aa1 RDI: 0000000000000007
RBP: ffff88802dba6c60 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88805435aff0 R12: ffff88802dba6c60
R13: ffff88802dba6c60 R14: ffff88802dba6c60 R15: ffff888055944908
FS:  0000000000000000(0000) GS:ffff8880d6af1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055de69e09300 CR3: 0000000055982000 CR4: 0000000000352ef0