handle_softirqs+0x286/0x870 kernel/softirq.c:626
 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:1067
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6057 Comm: syz.3.32 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:858
Code: c3 c7 ff 4c 89 e7 48 c7 c6 00 6c 94 8b e8 3b e2 2d ff 90 0f 0b e8 b3 c3 c7 ff 4c 89 e7 48 c7 c6 e0 62 94 8b e8 24 e2 2d ff 90 <0f> 0b e8 9c c3 c7 ff 4c 89 e7 48 c7 c6 00 6c 94 8b e8 0d e2 2d ff
RSP: 0018:ffffc900036975e0 EFLAGS: 00010246
RAX: 6fe8c3beab838900 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8da864c6 RDI: 00000000ffffffff
RBP: ffffc90003697748 R08: ffffffff8fbf4577 R09: 1ffffffff1f7e8ae
R10: dffffc0000000000 R11: fffffbfff1f7e8af R12: ffffea0000ccbd40
R13: dffffc0000000000 R14: ffffea0000ccbd48 R15: 0000000000000002
FS:  0000555587abe500(0000) GS:ffff888125a79000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0088ee000 CR3: 000000002b442000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x26d/0x540 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6be/0xe70 mm/readahead.c:512
 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400
 filemap_fault+0x6bc/0x12b0 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5328
 do_shared_fault mm/memory.c:5827 [inline]
 do_fault mm/memory.c:5901 [inline]
 do_pte_missing+0x6b0/0x3340 mm/memory.c:4409
 handle_pte_fault mm/memory.c:6242 [inline]
 __handle_mm_fault mm/memory.c:6389 [inline]
 handle_mm_fault+0x1999/0x32a0 mm/memory.c:6558
 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: 0033:0x7fc57ff57318
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007fff9e01e1d8 EFLAGS: 00010202
RAX: 0000200000000080 RBX: 0000000000000004 RCX: 0030626c6c756e2f
RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000200000000080
RBP: 0000000000000000 R08: 0000001b2f820000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fc5801e5fac
R13: 00007fc5801e5fa0 R14: fffffffffffffffe R15: 0000000000000006
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:858
Code: c3 c7 ff 4c 89 e7 48 c7 c6 00 6c 94 8b e8 3b e2 2d ff 90 0f 0b e8 b3 c3 c7 ff 4c 89 e7 48 c7 c6 e0 62 94 8b e8 24 e2 2d ff 90 <0f> 0b e8 9c c3 c7 ff 4c 89 e7 48 c7 c6 00 6c 94 8b e8 0d e2 2d ff
RSP: 0018:ffffc900036975e0 EFLAGS: 00010246
RAX: 6fe8c3beab838900 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8da864c6 RDI: 00000000ffffffff
RBP: ffffc90003697748 R08: ffffffff8fbf4577 R09: 1ffffffff1f7e8ae
R10: dffffc0000000000 R11: fffffbfff1f7e8af R12: ffffea0000ccbd40
R13: dffffc0000000000 R14: ffffea0000ccbd48 R15: 0000000000000002
FS:  0000555587abe500(0000) GS:ffff888125a79000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c008c41000 CR3: 000000002b442000 CR4: 00000000003526f0