__fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#2] SMP KASAN PTI
CPU: 1 UID: 0 PID: 8237 Comm: syz.2.625 Tainted: G      D             syzkaller #0 PREEMPT(full) 
Tainted: [D]=DIE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 bd 9c 2d ff 90 0f 0b e8 b5 89 c7 ff 4c 89 e7 48 c7 c6 20 ab 94 8b e8 a6 9c 2d ff 90 <0f> 0b e8 9e 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 8f 9c 2d ff
RSP: 0018:ffffc900195f75c0 EFLAGS: 00010246
RAX: 8ebf573981615100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8daa9dc3 RDI: 00000000ffffffff
RBP: ffffc900195f7740 R08: ffffffff8fc3d077 R09: 1ffffffff1f87a0e
R10: dffffc0000000000 R11: fffffbfff1f87a0f R12: ffffea0001e74c00
R13: dffffc0000000000 R14: ffffea0001e74c08 R15: 0000000000000004
FS:  000055556b110500(0000) GS:ffff888125adc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555651c85c8 CR3: 0000000030814000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0x26d/0x540 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a7/0xe50 mm/readahead.c:512
 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400
 filemap_fault+0x6ac/0x1290 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5320
 do_shared_fault mm/memory.c:5819 [inline]
 do_fault mm/memory.c:5893 [inline]
 do_pte_missing+0x6aa/0x3330 mm/memory.c:4401
 handle_pte_fault mm/memory.c:6273 [inline]
 __handle_mm_fault mm/memory.c:6411 [inline]
 handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580
 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f2a2fc55674
Code: c0 08 0f b7 c0 48 8b 54 24 10 66 89 02 e9 71 fd ff ff 48 8b 44 24 08 48 85 c0 0f 85 6c fe ff ff 48 8b 44 24 10 0f b6 54 24 18 <88> 10 e9 52 fd ff ff 48 8b 44 24 20 48 0b 44 24 28 75 31 48 8b 54
RSP: 002b:00007ffe0b92b520 EFLAGS: 00010246
RAX: 0000200000000b00 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000012 RSI: 0000000000000000 RDI: 000055556b1103c8
RBP: 00007ffe0b92b628 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f2a2ffe609c
R13: 00007ffe0b92b650 R14: fffffffffffffffe R15: 00007ffe0b92b670
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---