------------[ cut here ]------------ page_counter underflow: -512 nr_pages=512 WARNING: CPU: 1 PID: 8447 at mm/page_counter.c:60 page_counter_cancel+0x110/0x170 mm/page_counter.c:60 Modules linked in: CPU: 1 UID: 0 PID: 8447 Comm: syz.3.633 Not tainted 6.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:page_counter_cancel+0x110/0x170 mm/page_counter.c:60 Code: e8 55 23 98 ff 45 84 ed 75 24 e8 6b 21 98 ff c6 05 1a ef 10 0e 01 90 48 c7 c7 c0 9d 5c 8b 4c 89 e2 48 89 ee e8 91 9a 59 ff 90 <0f> 0b 90 90 e8 47 21 98 ff be 08 00 00 00 48 89 df e8 9a 71 f9 ff RSP: 0018:ffffc90004b9fae8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88814ce56440 RCX: ffffffff814e2a49 RDX: ffff88807f0ebc00 RSI: ffffffff814e2a56 RDI: 0000000000000001 RBP: fffffffffffffe00 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000200 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88802eb75f00 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561cdb84e950 CR3: 0000000028b7a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_counter_uncharge+0x32/0x70 mm/page_counter.c:182 hugetlb_cgroup_uncharge_counter+0xd6/0x410 mm/hugetlb_cgroup.c:431 hugetlb_vm_op_close+0x3fe/0x5b0 mm/hugetlb.c:5065 remove_vma+0xa8/0x1a0 mm/vma.c:330 exit_mmap+0x4e0/0xb30 mm/mmap.c:1888 __mmput+0x12a/0x480 kernel/fork.c:1347 mmput+0x62/0x70 kernel/fork.c:1369 exit_mm kernel/exit.c:571 [inline] do_exit+0x9bf/0x2d70 kernel/exit.c:926 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc67197dff9 Code: Unable to access opcode bytes at 0x7fc67197dfcf. RSP: 002b:00007fff87bf4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc67197dff9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fff87bf4ebc R08: 00007fff87bf4f4f R09: 000000000003d6ba R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000032 R13: 000000000003d6ba R14: 000000000003d2d3 R15: 00007fff87bf4f10