------------[ cut here ]------------
WARNING: CPU: 1 PID: 4904 at include/linux/fs.h:532 i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
WARNING: CPU: 1 PID: 4904 at include/linux/fs.h:532 hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Modules linked in:

CPU: 1 PID: 4904 Comm: syz.0.236 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
RIP: 0010:hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Code: c0 ff 4c 89 f7 48 89 de 4c 89 fa 31 c9 5b 41 5c 41 5d 41 5e 41 5f 5d eb 7a e8 25 4b c0 ff 0f 0b e9 62 fe ff ff e8 19 4b c0 ff <0f> 0b e9 2d ff ff ff 48 c7 c1 44 a2 69 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90003367b40 EFLAGS: 00010287

RAX: ffffffff81b77907 RBX: 0000200000000000 RCX: 0000000000080000
RDX: ffffc90004ec9000 RSI: 00000000000000ef RDI: 00000000000000f0