RBP: 00007f1ed5230090 R08: 0000000100000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f1ed4535f80 R15: 00007ffce8f7c9d8
 </TASK>
------------[ cut here ]------------
page_counter underflow: -512 nr_pages=512
WARNING: CPU: 0 PID: 6151 at mm/page_counter.c:60 page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Modules linked in:
CPU: 0 UID: 0 PID: 6151 Comm: syz.0.27 Not tainted 6.15.0-rc1-syzkaller-g900241a5cc15 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Code: e8 d5 9e 94 ff 45 84 ed 75 24 e8 eb a3 94 ff c6 05 78 2c 48 0e 01 90 48 c7 c7 a0 b8 9d 8b 4c 89 e2 48 89 ee e8 71 35 54 ff 90 <0f> 0b 90 90 e8 c7 a3 94 ff be 08 00 00 00 48 89 df e8 4a 19 f9 ff
RSP: 0018:ffffc90003eaf8c0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88814dff1380 RCX: ffffffff817acff8
RDX: ffff8880269d8000 RSI: ffffffff817ad005 RDI: 0000000000000001
RBP: fffffffffffffe00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000200
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888028a86190
FS:  0000000000000000(0000) GS:ffff8881249b9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31c5ffff CR3: 0000000035082000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 page_counter_uncharge+0x32/0x70 mm/page_counter.c:184
 hugetlb_cgroup_uncharge_counter+0xd6/0x410 mm/hugetlb_cgroup.c:427
 hugetlb_vm_op_close+0x3eb/0x5a0 mm/hugetlb.c:5373
 vma_close mm/internal.h:190 [inline]
 remove_vma+0x85/0x160 mm/vma.c:426
 exit_mmap+0x511/0xb90 mm/mmap.c:1309
 __mmput+0x12a/0x410 kernel/fork.c:1379
 mmput+0x62/0x70 kernel/fork.c:1401
 exit_mm kernel/exit.c:589 [inline]
 do_exit+0x9d1/0x2c30 kernel/exit.c:940
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1ed437dff9
Code: Unable to access opcode bytes at 0x7f1ed437dfcf.
RSP: 002b:00007f1ed52300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f1ed4535f88 RCX: 00007f1ed437dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1ed4535f88
RBP: 00007f1ed4535f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ed4535f8c
R13: 0000000000000000 R14: 00007ffce8f7c8f0 R15: 00007ffce8f7c9d8
 </TASK>