unmap_vmas+0x48b/0x640 mm/memory.c:1730
 exit_mmap+0x249/0x980 mm/mmap.c:3238
 __mmput+0x115/0x3c0 kernel/fork.c:1200
 exit_mm+0x226/0x300 kernel/exit.c:565
 do_exit+0x9f1/0x26a0 kernel/exit.c:858
 do_group_exit+0x202/0x2b0 kernel/exit.c:1021
 get_signal+0x16cb/0x17a0 kernel/signal.c:2871
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
------------[ cut here ]------------
kernel BUG at mm/filemap.c:153!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6068 Comm: syz.5.458 Not tainted 6.1.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:filemap_unaccount_folio+0x5c2/0xa60 mm/filemap.c:153
Code: 07 38 c1 0f 8c 21 fe ff ff 48 89 ef e8 f7 2f 2b 00 e9 14 fe ff ff e8 dd ce d3 ff 4c 89 ef 48 c7 c6 e0 2f 15 8b e8 4e 5c 13 00 <0f> 0b e8 c7 ce d3 ff 4c 89 ef 48 c7 c6 60 35 15 8b e8 38 5c 13 00
RSP: 0018:ffffc9000bf2f578 EFLAGS: 00010046
RAX: 89e44bc9fc003000 RBX: ffff888052d5af98 RCX: ffffc9000bf2f303
RDX: 0000000000000002 RSI: ffffffff8b0c2ec0 RDI: ffffffff8b5f6f80
RBP: ffffc9000bf2f718 R08: dffffc0000000000 R09: fffffbfff1d4168e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888052d5af98
R13: ffffea0001c5f0c0 R14: ffffea0001c5f0c0 R15: ffffea0001c5f0c0
FS:  000055558de31500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3f4f40 CR3: 00000000559d2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __filemap_remove_folio+0xc7/0xaa0 mm/filemap.c:222
 filemap_remove_folio+0x105/0x2e0 mm/filemap.c:255
 truncate_inode_folio+0x59/0x70 mm/truncate.c:195
 shmem_undo_range+0x570/0x2390 mm/shmem.c:942
 shmem_truncate_range mm/shmem.c:1062 [inline]
 shmem_evict_inode+0x265/0xa60 mm/shmem.c:1171
 evict+0x529/0x930 fs/inode.c:705
 __dentry_kill+0x436/0x650 fs/dcache.c:611
 dentry_kill+0xbb/0x290
 dput+0xfb/0x1d0 fs/dcache.c:918
 __fput+0x62e/0x8d0 fs/file_table.c:328
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f95e0f8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffde84c22a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f95e11a7ba0 RCX: 00007f95e0f8d169
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f95e11a7ba0 R08: 000000000000016c R09: 00000013e84c259f
R10: 00007f95e11a7ac0 R11: 0000000000000246 R12: 000000000003168d
R13: 00007f95e11a6160 R14: ffffffffffffffff R15: 00007ffde84c23c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x5c2/0xa60 mm/filemap.c:153
Code: 07 38 c1 0f 8c 21 fe ff ff 48 89 ef e8 f7 2f 2b 00 e9 14 fe ff ff e8 dd ce d3 ff 4c 89 ef 48 c7 c6 e0 2f 15 8b e8 4e 5c 13 00 <0f> 0b e8 c7 ce d3 ff 4c 89 ef 48 c7 c6 60 35 15 8b e8 38 5c 13 00
RSP: 0018:ffffc9000bf2f578 EFLAGS: 00010046
RAX: 89e44bc9fc003000 RBX: ffff888052d5af98 RCX: ffffc9000bf2f303
RDX: 0000000000000002 RSI: ffffffff8b0c2ec0 RDI: ffffffff8b5f6f80
RBP: ffffc9000bf2f718 R08: dffffc0000000000 R09: fffffbfff1d4168e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888052d5af98
R13: ffffea0001c5f0c0 R14: ffffea0001c5f0c0 R15: ffffea0001c5f0c0
FS:  000055558de31500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3f4f40 CR3: 00000000559d2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400