alloc_vmap_area+0x960/0x29e0 mm/vmalloc.c:2098
 __get_vm_area_node+0x1ca/0x330 mm/vmalloc.c:3193
 get_vm_area_caller+0x71/0xa0 mm/vmalloc.c:3244
 vmap+0x135/0x320 mm/vmalloc.c:3516
 io_region_init_ptr io_uring/memmap.c:125 [inline]
 io_create_region+0x602/0xd50 io_uring/memmap.c:228
 io_allocate_scq_urings io_uring/io_uring.c:3644 [inline]
 io_uring_create io_uring/io_uring.c:3858 [inline]
 io_uring_setup+0x140f/0x2170 io_uring/io_uring.c:3936
 __do_sys_io_uring_setup io_uring/io_uring.c:3970 [inline]
 __se_sys_io_uring_setup io_uring/io_uring.c:3961 [inline]
 __x64_sys_io_uring_setup+0xc2/0x170 io_uring/io_uring.c:3961
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:870!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 8257 Comm: syz.4.591 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+0xf5b/0x11e0 mm/filemap.c:870
Code: 53 c7 ff 48 c7 c6 60 70 99 8b 4c 89 ef e8 bd 6b 11 00 90 0f 0b e8 f5 52 c7 ff 48 c7 c6 c0 70 99 8b 4c 89 ef e8 a6 6b 11 00 90 <0f> 0b e8 de 52 c7 ff 90 0f 0b 90 e9 f2 fb ff ff e8 d0 52 c7 ff 48
RSP: 0018:ffffc900055773f0 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc90011a98000
RDX: 0000000000080000 RSI: ffffffff81f5baba RDI: ffff88807c6e4d84
RBP: 0000000000112c00 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9081fcd7 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea0001e73900 R14: 0000000000000000 R15: 1ffff92000aaeea8
FS:  00007f4e493b26c0(0000) GS:ffff888124b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f57cd760096 CR3: 0000000076ddb000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x19a/0x610 mm/filemap.c:978
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x635/0xf20 mm/readahead.c:512
 do_sync_mmap_readahead mm/filemap.c:3340 [inline]
 filemap_fault+0x1583/0x29a0 mm/filemap.c:3489
 __do_fault+0x10d/0x490 mm/memory.c:5280
 do_shared_fault mm/memory.c:5762 [inline]
 do_fault mm/memory.c:5836 [inline]
 do_pte_missing+0x1a6/0x3ba0 mm/memory.c:4361
 handle_pte_fault mm/memory.c:6177 [inline]
 __handle_mm_fault+0x1556/0x2aa0 mm/memory.c:6318
 handle_mm_fault+0x589/0xd10 mm/memory.c:6487
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x54e/0x3530 mm/gup.c:1428
 __get_user_pages_locked mm/gup.c:1692 [inline]
 faultin_page_range+0x338/0x940 mm/gup.c:1912
 madvise_populate mm/madvise.c:979 [inline]
 madvise_do_behavior+0x34c/0x530 mm/madvise.c:1883
 do_madvise+0x176/0x240 mm/madvise.c:1978
 __do_sys_madvise mm/madvise.c:1987 [inline]
 __se_sys_madvise mm/madvise.c:1985 [inline]
 __x64_sys_madvise+0xa9/0x110 mm/madvise.c:1985
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e4b58efc9
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:00007f4e493b2038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f4e4b7e6270 RCX: 00007f4e4b58efc9
RDX: 0000000000000017 RSI: 0000000000c00000 RDI: 0000200000000000
RBP: 00007f4e4b611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4e4b7e6308 R14: 00007f4e4b7e6270 R15: 00007ffeb3915608
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:870
Code: 53 c7 ff 48 c7 c6 60 70 99 8b 4c 89 ef e8 bd 6b 11 00 90 0f 0b e8 f5 52 c7 ff 48 c7 c6 c0 70 99 8b 4c 89 ef e8 a6 6b 11 00 90 <0f> 0b e8 de 52 c7 ff 90 0f 0b 90 e9 f2 fb ff ff e8 d0 52 c7 ff 48
RSP: 0018:ffffc900055773f0 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc90011a98000
RDX: 0000000000080000 RSI: ffffffff81f5baba RDI: ffff88807c6e4d84
RBP: 0000000000112c00 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9081fcd7 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea0001e73900 R14: 0000000000000000 R15: 1ffff92000aaeea8
FS:  00007f4e493b26c0(0000) GS:ffff888124b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000076ddb000 CR4: 00000000003526f0