------------[ cut here ]------------
vma_is_anonymous(vma)
WARNING: mm/internal.h:241 at mmap_file mm/internal.h:241 [inline], CPU#0: syz.0.17/5834
WARNING: mm/internal.h:241 at __mmap_new_file_vma mm/vma.c:2586 [inline], CPU#0: syz.0.17/5834
WARNING: mm/internal.h:241 at __mmap_new_vma mm/vma.c:2685 [inline], CPU#0: syz.0.17/5834
WARNING: mm/internal.h:241 at __mmap_region mm/vma.c:2905 [inline], CPU#0: syz.0.17/5834
WARNING: mm/internal.h:241 at mmap_region+0x1f8d/0x2460 mm/vma.c:2990, CPU#0: syz.0.17/5834
Modules linked in:
CPU: 0 UID: 0 PID: 5834 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:mmap_file mm/internal.h:241 [inline]
RIP: 0010:__mmap_new_file_vma mm/vma.c:2586 [inline]
RIP: 0010:__mmap_new_vma mm/vma.c:2685 [inline]
RIP: 0010:__mmap_region mm/vma.c:2905 [inline]
RIP: 0010:mmap_region+0x1f8d/0x2460 mm/vma.c:2990
Code: d6 a0 ff e9 69 f1 ff ff e8 10 d6 a0 ff 90 0f 0b 90 e9 5f e2 ff ff e8 02 d6 a0 ff 90 0f 0b 90 e9 02 fe ff ff e8 f4 d5 a0 ff 90 <0f> 0b 90 c7 44 24 08 ea ff ff ff 48 b8 00 00 00 00 00 fc ff df 41
RSP: 0018:ffffc900036cf560 EFLAGS: 00010293
RAX: ffffffff8226adfc RBX: fffff520006d9ec0 RCX: ffff888030cd8000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc900036cfb70 R08: ffff88807a397003 R09: 1ffff1100f472e00
R10: dffffc0000000000 R11: ffffed100f472e01 R12: dffffc0000000000
R13: 1ffff920006d9efd R14: 1ffff1100fb20cf9 R15: ffff88807d9067c8
FS:  000055557bee9500(0000) GS:ffff888124f18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b23070000 CR3: 0000000071f58000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_mmap+0xe0a/0x1300 mm/mmap.c:573
 vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:619
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x510 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0b2319e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd4b92648 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f0b23425fa0 RCX: 00007f0b2319e0d9
RDX: 0000000003000004 RSI: 0000000000003000 RDI: 0000200000ffa000
RBP: 00007f0b23235024 R08: 0000000000000003 R09: 0000000100000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0b23425fac R14: 00007f0b23425fa0 R15: 00007f0b23425fa0
 </TASK>