__vmalloc_node_range_noprof+0x228/0x1630 mm/vmalloc.c:4042
 __vmalloc_node_noprof+0xad/0xf0 mm/vmalloc.c:4143
 alloc_thread_stack_node kernel/fork.c:359 [inline]
 dup_task_struct kernel/fork.c:929 [inline]
 copy_process+0x7fb/0x8030 kernel/fork.c:2115
 kernel_clone+0x176/0x9d0 kernel/fork.c:2748
 kernel_thread+0xdb/0x120 kernel/fork.c:2809
 create_kthread kernel/kthread.c:459 [inline]
 kthreadd+0x498/0x7a0 kernel/kthread.c:817
 ret_from_fork+0x72b/0xd50 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:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 20029 Comm: syz.3.3589 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__filemap_add_folio+0xfc2/0x12a0 mm/filemap.c:858
Code: 4c c1 ff 48 c7 c6 a0 93 dd 8b 4c 89 ef e8 d6 eb 12 00 90 0f 0b e8 ee 4b c1 ff 48 c7 c6 00 94 dd 8b 4c 89 ef e8 bf eb 12 00 90 <0f> 0b e8 d7 4b c1 ff 48 c7 c6 80 94 dd 8b 4c 89 ef e8 a8 eb 12 00
RSP: 0018:ffffc90004527820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000
RDX: ffff88801fe82540 RSI: ffffffff825b70a8 RDI: ffff88801fe82a04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea00008cce40 R14: 000000000002c928 R15: 0000000000000000
FS:  0000555573700500(0000) GS:ffff888123dec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f488b627dac CR3: 000000003abf8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d3/0x630 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:470 [inline]
 page_cache_ra_order+0x602/0xed0 mm/readahead.c:535
 do_sync_mmap_readahead mm/filemap.c:3428 [inline]
 filemap_fault+0x1943/0x3130 mm/filemap.c:3582
 __do_fault+0x10b/0x440 mm/memory.c:5425
 do_shared_fault mm/memory.c:5924 [inline]
 do_fault+0x2db/0x1750 mm/memory.c:5998
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6517
 handle_mm_fault+0x37b/0xa30 mm/memory.c:6686
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7f44c7b6e488
Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f
RSP: 002b:00007ffd632c1768 EFLAGS: 00010202
RAX: 0000200000000040 RBX: 0000000000000004 RCX: 00236962762f7665
RDX: 000000000000000a RSI: 6962762f7665642f RDI: 0000200000000040
RBP: fffffffffffffffe R08: 0000001b2de20000 R09: 0000000000000001
R10: 7ffffffffffffff5 R11: 0000000000000009 R12: 00007ffd632c1890
R13: 00007f44c7e2609c R14: 0000000000123a8f R15: 00007ffd632c1870
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xfc2/0x12a0 mm/filemap.c:858
Code: 4c c1 ff 48 c7 c6 a0 93 dd 8b 4c 89 ef e8 d6 eb 12 00 90 0f 0b e8 ee 4b c1 ff 48 c7 c6 00 94 dd 8b 4c 89 ef e8 bf eb 12 00 90 <0f> 0b e8 d7 4b c1 ff 48 c7 c6 80 94 dd 8b 4c 89 ef e8 a8 eb 12 00
RSP: 0018:ffffc90004527820 EFLAGS: 00010293

RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000
RDX: ffff88801fe82540 RSI: ffffffff825b70a8 RDI: ffff88801fe82a04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea00008cce40 R14: 000000000002c928 R15: 0000000000000000
FS:  0000555573700500(0000) GS:ffff888123dec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c35a11c CR3: 000000003abf8000 CR4: 00000000003526f0