tlb_batch_pages_flush mm/mmu_gather.c:59 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:254 [inline]
 tlb_flush_mmu+0x105/0x220 mm/mmu_gather.c:261
 zap_pte_range mm/memory.c:1523 [inline]
 zap_pmd_range mm/memory.c:1572 [inline]
 zap_pud_range mm/memory.c:1601 [inline]
 zap_p4d_range mm/memory.c:1622 [inline]
 unmap_page_range+0x1f53/0x2500 mm/memory.c:1643
 unmap_vmas+0x260/0x390 mm/memory.c:1728
 exit_mmap+0x20d/0x960 mm/mmap.c:3250
 __mmput+0x118/0x3c0 kernel/fork.c:1205
 exit_mm+0x1fe/0x2d0 kernel/exit.c:565
 do_exit+0x905/0x2480 kernel/exit.c:867
 do_group_exit+0x217/0x2d0 kernel/exit.c:1022
 get_signal+0x1272/0x1350 kernel/signal.c:2871
 arch_do_signal_or_restart+0xc4/0x1350 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
------------[ cut here ]------------
kernel BUG at mm/filemap.c:153!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15430 Comm: syz.6.3622 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:filemap_unaccount_folio+0x5cf/0xa80 mm/filemap.c:153
Code: 07 38 c1 0f 8c 19 fe ff ff 4c 89 e7 e8 7a e1 27 00 e9 0c fe ff ff e8 b0 f6 d6 ff 48 89 df 48 c7 c6 a0 f7 94 8a e8 f1 0c 12 00 <0f> 0b e8 9a f6 d6 ff 48 89 df 48 c7 c6 00 fd 94 8a e8 db 0c 12 00
RSP: 0018:ffffc9000c537618 EFLAGS: 00010046
RAX: 0dd5bb71df4c7500 RBX: ffffea0000c68c00 RCX: 0dd5bb71df4c7500
RDX: 0000000000000002 RSI: ffffffff8a8c23a0 RDI: ffffffff8adf0c20
RBP: ffffc9000c537778 R08: ffffffff8e1fc32f R09: 1ffffffff1c3f865
R10: dffffc0000000000 R11: fffffbfff1c3f866 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888076e209b8 R15: 1ffff920018a6ed4
FS:  000055558a0e5500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f275c1e8400 CR3: 0000000027ff8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __filemap_remove_folio+0xbc/0x8a0 mm/filemap.c:222
 filemap_remove_folio+0xed/0x2c0 mm/filemap.c:255
 truncate_inode_folio+0x59/0x70 mm/truncate.c:195
 shmem_undo_range+0x533/0x20c0 mm/shmem.c:942
 shmem_truncate_range mm/shmem.c:1062 [inline]
 shmem_evict_inode+0x25b/0xa80 mm/shmem.c:1171
 evict+0x4c9/0x8d0 fs/inode.c:705
 __dentry_kill+0x431/0x650 fs/dcache.c:611
 dentry_kill+0xb8/0x290 fs/dcache.c:-1
 dput+0xfa/0x1d0 fs/dcache.c:918
 __fput+0x5e0/0x920 fs/file_table.c:328
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 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:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f275c19acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe7bb48aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f275c417da0 RCX: 00007f275c19acb9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f275c417da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007f275c417cb0 R11: 0000000000000246 R12: 000000000007b986
R13: 00007f275c41609c R14: 000000000007b702 R15: 00007f275c416090
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x5cf/0xa80 mm/filemap.c:153
Code: 07 38 c1 0f 8c 19 fe ff ff 4c 89 e7 e8 7a e1 27 00 e9 0c fe ff ff e8 b0 f6 d6 ff 48 89 df 48 c7 c6 a0 f7 94 8a e8 f1 0c 12 00 <0f> 0b e8 9a f6 d6 ff 48 89 df 48 c7 c6 00 fd 94 8a e8 db 0c 12 00
RSP: 0018:ffffc9000c537618 EFLAGS: 00010046
RAX: 0dd5bb71df4c7500 RBX: ffffea0000c68c00 RCX: 0dd5bb71df4c7500
RDX: 0000000000000002 RSI: ffffffff8a8c23a0 RDI: ffffffff8adf0c20
RBP: ffffc9000c537778 R08: ffffffff8e1fc32f R09: 1ffffffff1c3f865
R10: dffffc0000000000 R11: fffffbfff1c3f866 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888076e209b8 R15: 1ffff920018a6ed4
FS:  000055558a0e5500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f275c1e8400 CR3: 0000000027ff8000 CR4: 00000000003526f0