__mmput+0x115/0x3c0 kernel/fork.c:1346
 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+0x16a1/0x1740 kernel/signal.c:2911
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:162!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 PID: 6973 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:filemap_unaccount_folio+0x70d/0xc60 mm/filemap.c:162
Code: 25 ff 0f 00 00 0f 84 f0 00 00 00 e8 6d f1 ca ff e9 6c f9 ff ff e8 63 f1 ca ff 4c 89 ef 48 c7 c6 e0 84 d3 8b e8 b4 36 14 00 90 <0f> 0b e8 4c f1 ca ff 4c 89 ef 48 c7 c6 80 85 d3 8b e8 9d 36 14 00
RSP: 0018:ffffc90004aff658 EFLAGS: 00010046
RAX: 4202404abff23600 RBX: 0000000000000000 RCX: ffffc90004aff203
RDX: 0000000000000002 RSI: ffffffff8bcaca20 RDI: ffffffff8c1f8260
RBP: 0000000000000000 R08: ffffffff8fa8f92f R09: 1ffffffff1f51f25
R10: dffffc0000000000 R11: fffffbfff1f51f26 R12: 1ffffd40003757f0
R13: ffffea0001babf80 R14: 1ffffd40003757f1 R15: ffffea0001babf88
FS:  0000555572835480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32324000 CR3: 0000000076076000 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+0x45d/0x1df0 mm/shmem.c:1001
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x29b/0xa60 mm/shmem.c:1242
 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_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcf8247cc5a
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:00007fcf826cfb60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fcf8247cc5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fcf825ad980 R08: 0000001b32720000 R09: 00000000000003a2
R10: 000000008189eddb R11: 0000000000000293 R12: 0000000000023144
R13: 00007fcf825ac12c R14: 00007fcf825ac120 R15: 0000000000000032
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x70d/0xc60 mm/filemap.c:162
Code: 25 ff 0f 00 00 0f 84 f0 00 00 00 e8 6d f1 ca ff e9 6c f9 ff ff e8 63 f1 ca ff 4c 89 ef 48 c7 c6 e0 84 d3 8b e8 b4 36 14 00 90 <0f> 0b e8 4c f1 ca ff 4c 89 ef 48 c7 c6 80 85 d3 8b e8 9d 36 14 00
RSP: 0018:ffffc90004aff658 EFLAGS: 00010046
RAX: 4202404abff23600 RBX: 0000000000000000 RCX: ffffc90004aff203
RDX: 0000000000000002 RSI: ffffffff8bcaca20 RDI: ffffffff8c1f8260
RBP: 0000000000000000 R08: ffffffff8fa8f92f R09: 1ffffffff1f51f25
R10: dffffc0000000000 R11: fffffbfff1f51f26 R12: 1ffffd40003757f0
R13: ffffea0001babf80 R14: 1ffffd40003757f1 R15: ffffea0001babf88
FS:  0000555572835480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32324000 CR3: 0000000076076000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400