unmap_vmas+0x3cc/0x5f0 mm/memory.c:1758
 exit_mmap+0x2c6/0xd40 mm/mmap.c:3287
 __mmput+0x115/0x3c0 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 get_signal+0x176e/0x1850 kernel/signal.c:2907
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:212
 do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
------------[ cut here ]------------
kernel BUG at mm/filemap.c:162!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 PID: 18234 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:filemap_unaccount_folio+0x6d0/0xc30 mm/filemap.c:162
Code: 25 ff 0f 00 00 0f 84 f0 00 00 00 e8 8a 3b cb ff e9 ac f9 ff ff e8 80 3b cb ff 4c 89 ef 48 c7 c6 a0 7e b3 8b e8 71 00 14 00 90 <0f> 0b e8 69 3b cb ff 4c 89 ef 48 c7 c6 20 84 b3 8b e8 5a 00 14 00
RSP: 0018:ffffc9000441f798 EFLAGS: 00010046
RAX: df8c9bde025bf000 RBX: 0000000000000000 RCX: ffffc9000441f603
RDX: 0000000000000002 RSI: ffffffff8baad360 RDI: ffffffff8bfed360
RBP: 0000000000000000 R08: ffffffff8f872cef R09: 1ffffffff1f0e59d
R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: 0000000000000001
R13: ffffea00015f8b40 R14: 1ffffd40002bf168 R15: ffffea00015f8b48
FS:  000055555e147480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 0000000095586000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __filemap_remove_folio+0xc4/0x9e0 mm/filemap.c:231
 filemap_remove_folio+0x109/0x2e0 mm/filemap.c:264
 truncate_inode_folio+0x5d/0x70 mm/truncate.c:195
 shmem_undo_range+0x439/0x1da0 mm/shmem.c:1007
 shmem_truncate_range mm/shmem.c:1120 [inline]
 shmem_evict_inode+0x29b/0xa60 mm/shmem.c:1248
 evict+0x2a8/0x630 fs/inode.c:667
 __dentry_kill+0x20d/0x630 fs/dcache.c:603
 dput+0x19f/0x2b0 fs/dcache.c:845
 __fput+0x678/0x8a0 fs/file_table.c:430
 __do_sys_close fs/open.c:1556 [inline]
 __se_sys_close fs/open.c:1541 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1541
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f4d9e87cc9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007f4d9eacfb10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f4d9e87cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007f4d9e9ad980 R08: 0000001b33020000 R09: 0000000000000157
R10: 000000008140a4f6 R11: 0000000000000293 R12: 00000000000b5cad
R13: ffffffffffffffff R14: 00007f4d9e400000 R15: 00000000000b596c
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x6d0/0xc30 mm/filemap.c:162
Code: 25 ff 0f 00 00 0f 84 f0 00 00 00 e8 8a 3b cb ff e9 ac f9 ff ff e8 80 3b cb ff 4c 89 ef 48 c7 c6 a0 7e b3 8b e8 71 00 14 00 90 <0f> 0b e8 69 3b cb ff 4c 89 ef 48 c7 c6 20 84 b3 8b e8 5a 00 14 00
RSP: 0018:ffffc9000441f798 EFLAGS: 00010046
RAX: df8c9bde025bf000 RBX: 0000000000000000 RCX: ffffc9000441f603
RDX: 0000000000000002 RSI: ffffffff8baad360 RDI: ffffffff8bfed360
RBP: 0000000000000000 R08: ffffffff8f872cef R09: 1ffffffff1f0e59d
R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: 0000000000000001
R13: ffffea00015f8b40 R14: 1ffffd40002bf168 R15: ffffea00015f8b48
FS:  000055555e147480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 0000000095586000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400