__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
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xa73/0x26a0 kernel/exit.c:871
 do_group_exit+0x202/0x2b0 kernel/exit.c:1021
 get_signal+0x16f7/0x17d0 kernel/signal.c:2871
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
------------[ cut here ]------------
kernel BUG at mm/filemap.c:153!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9939 Comm: syz.0.1555 Tainted: G        W          6.1.120-syzkaller-00773-g52f863f820fd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
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 e7 21 2b 00 e9 14 fe ff ff e8 9d 98 d3 ff 4c 89 ef 48 c7 c6 60 00 15 8b e8 7e 50 13 00 <0f> 0b e8 87 98 d3 ff 4c 89 ef 48 c7 c6 e0 05 15 8b e8 68 50 13 00
RSP: 0018:ffffc9000e507578 EFLAGS: 00010046
RAX: 838b30c5ea48ee00 RBX: ffff888056999658 RCX: ffffc9000e507303
RDX: 0000000000000002 RSI: ffffffff8b0c14e0 RDI: ffffffff8b5e6500
RBP: ffffc9000e507718 R08: dffffc0000000000 R09: fffffbfff1d360c6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888056999658
R13: ffffea00015606c0 R14: ffffea00015606c0 R15: ffffea00015606c0
FS:  000055555a87b500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 000000001eb67000 CR4: 00000000003506f0
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: 0033:0x7fd952785d29
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:00007ffcf2ee7698 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000a75ef RCX: 00007fd952785d29
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fd952977ba0 R08: 0000000000000001 R09: 00007ffcf2ee798f
R10: 00007fd952400000 R11: 0000000000000246 R12: 00000000000a763c
R13: 00007fd952975fa0 R14: 0000000000000032 R15: ffffffffffffffff
 </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 e7 21 2b 00 e9 14 fe ff ff e8 9d 98 d3 ff 4c 89 ef 48 c7 c6 60 00 15 8b e8 7e 50 13 00 <0f> 0b e8 87 98 d3 ff 4c 89 ef 48 c7 c6 e0 05 15 8b e8 68 50 13 00
RSP: 0018:ffffc9000e507578 EFLAGS: 00010046
RAX: 838b30c5ea48ee00 RBX: ffff888056999658 RCX: ffffc9000e507303
RDX: 0000000000000002 RSI: ffffffff8b0c14e0 RDI: ffffffff8b5e6500
RBP: ffffc9000e507718 R08: dffffc0000000000 R09: fffffbfff1d360c6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888056999658
R13: ffffea00015606c0 R14: ffffea00015606c0 R15: ffffea00015606c0
FS:  000055555a87b500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 000000001eb67000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400