R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f52fb5e5fa0 R14: 00007f52fb5e5fa0 R15: 0000000000000005 ------------[ cut here ]------------ page_counter underflow: -1024 nr_pages=1024 WARNING: CPU: 1 PID: 4437 at mm/page_counter.c:56 page_counter_cancel mm/page_counter.c:55 [inline] WARNING: CPU: 1 PID: 4437 at mm/page_counter.c:56 page_counter_uncharge+0xee/0x110 mm/page_counter.c:158 Modules linked in: CPU: 1 PID: 4437 Comm: syz.0.22 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:page_counter_cancel mm/page_counter.c:55 [inline] RIP: 0010:page_counter_uncharge+0xee/0x110 mm/page_counter.c:158 Code: 74 2f e8 05 ad a9 ff e9 5d ff ff ff e8 fb ac a9 ff c6 05 aa dc 33 0c 01 48 c7 c7 40 4a 98 8a 4c 89 fe 48 89 da e8 c2 d1 75 ff <0f> 0b e9 74 ff ff ff e8 d6 ac a9 ff eb 05 e8 cf ac a9 ff 5b 41 5c RSP: 0018:ffffc900040c79c0 EFLAGS: 00010246 RAX: 8a20ac9aeb7b4e00 RBX: 0000000000000400 RCX: ffff88801a7ed940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff88805c481d20 R08: dffffc0000000000 R09: fffff52000818ec9 R10: fffff52000818ec9 R11: 1ffff92000818ec8 R12: dffffc0000000000 R13: fffffffffffffc00 R14: ffff88807df50380 R15: fffffffffffffc00 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c008318000 CR3: 000000007e23d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hugetlb_cgroup_uncharge_counter+0xc3/0x120 mm/hugetlb_cgroup.c:430 hugetlb_vm_op_close+0x550/0x930 mm/hugetlb.c:4889 vma_close+0x6b/0xa0 mm/util.c:1129 remove_vma mm/mmap.c:140 [inline] exit_mmap+0x3e8/0x8e0 mm/mmap.c:3272 __mmput+0x118/0x3c0 kernel/fork.c:1200 exit_mm+0x1e6/0x2c0 kernel/exit.c:565 do_exit+0x8c1/0x2400 kernel/exit.c:867 do_group_exit+0x217/0x2d0 kernel/exit.c:1022 __do_sys_exit_group kernel/exit.c:1033 [inline] __se_sys_exit_group kernel/exit.c:1031 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1031 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f52fb38f749 Code: Unable to access opcode bytes at 0x7f52fb38f71f. RSP: 002b:00007ffeb9417498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f52fb38f749 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffeb94174fc R08: 00000002b941758f R09: 00000000000927c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000005 R13: 00000000000927c0 R14: 00000000000175c3 R15: 00007ffeb9417550