erofs_kill_sb+0x4c/0x140 fs/erofs/super.c:794
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x43b/0x4d0 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5774 at include/linux/memcontrol.h:764 folio_lruvec include/linux/memcontrol.h:764 [inline]
WARNING: CPU: 1 PID: 5774 at include/linux/memcontrol.h:764 folio_lruvec_lock_irqsave+0x202/0x260 mm/memcontrol.c:1398
Modules linked in:
CPU: 1 PID: 5774 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:folio_lruvec include/linux/memcontrol.h:764 [inline]
RIP: 0010:folio_lruvec_lock_irqsave+0x202/0x260 mm/memcontrol.c:1398
Code: 4c 89 f7 e8 30 21 f9 ff 48 8b 04 24 49 89 06 e9 28 ff ff ff 48 89 df 48 c7 c6 60 bc d6 8a e8 d5 58 e1 ff c6 05 d6 63 8f 0c 01 <0f> 0b e9 2b fe ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c a9 fe
RSP: 0018:ffffc9000464f758 EFLAGS: 00010246
RAX: 01bf7ff4c7db9400 RBX: ffffea0000bbc880 RCX: 01bf7ff4c7db9400
RDX: 0000000000000002 RSI: ffffffff8acada80 RDI: ffffffff8b1c80e0
RBP: ffffc9000464f800 R08: ffffffff8e8ad9ef R09: 1ffffffff1d15b3d
R10: dffffc0000000000 R11: fffffbfff1d15b3e R12: ffff8880b8f36c28
R13: dffffc0000000000 R14: ffff888024130000 R15: 0000000000000000
FS:  0000555587439500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc426809000 CR3: 0000000061363000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 folio_lruvec_relock_irqsave include/linux/memcontrol.h:1654 [inline]
 folio_batch_move_lru+0x2b4/0x660 mm/swap.c:208
 lru_add_drain_cpu+0x109/0x8e0 mm/swap.c:644
 lru_add_drain+0x121/0x3e0 mm/swap.c:744
 unmap_region+0xfa/0x370 mm/mmap.c:2341
 do_vmi_align_munmap+0x10dc/0x16d0 mm/mmap.c:2592
 do_vma_munmap mm/mmap.c:3126 [inline]
 __do_sys_brk mm/mmap.c:239 [inline]
 __se_sys_brk+0x5c8/0xc10 mm/mmap.c:178
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f62e399a1d7
Code: 44 00 00 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 0c 00 00 00 0f 05 <48> 89 05 32 2e db 00 48 39 f8 72 0d 31 c0 c3 66 2e 0f 1f 84 00 00
RSP: 002b:00007fff5aab08f8 EFLAGS: 00000206 ORIG_RAX: 000000000000000c
RAX: ffffffffffffffda RBX: ffffffffffff8000 RCX: 00007f62e399a1d7
RDX: fffffffffffff000 RSI: 000055558744c9e0 RDI: 000055558746d000
RBP: 0000555587475000 R08: 00000000000205e0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 0000555587475000
R13: 0000000000000000 R14: 0000000000000802 R15: 0000555587439e90
 </TASK>