------------[ cut here ]------------
WARNING: CPU: 0 PID: 6068 at include/linux/fs.h:532 i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
WARNING: CPU: 0 PID: 6068 at include/linux/fs.h:532 hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Modules linked in:
CPU: 0 PID: 6068 Comm: syz.1.366 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
RIP: 0010:hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Code: bf 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 e5 b3 bf ff 0f 0b e9 62 fe ff ff e8 d9 b3 bf ff <0f> 0b e9 2d ff ff ff 48 c7 c1 44 0c 8a 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90004b4f840 EFLAGS: 00010287
RAX: ffffffff81b96bc7 RBX: 0000200000400000 RCX: 0000000000080000
RDX: ffffc9000d951000 RSI: 00000000000025d3 RDI: 00000000000025d4
RBP: 0000000000000000 R08: ffff88801ebcbfbf R09: 1ffff11003d797f7
R10: dffffc0000000000 R11: ffffed1003d797f8 R12: ffff8880208643b8
R13: dffffc0000000000 R14: ffff888020864318 R15: ffff88802415e6c0
FS:  00007fd9557866c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2b31e6a9f0 CR3: 00000000662bb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vma_adjust+0x2b6/0x1c10 mm/mmap.c:843
 vma_adjust include/linux/mm.h:2567 [inline]
 __split_vma+0x34b/0x410 mm/mmap.c:-1
 madvise_behavior mm/madvise.c:164 [inline]
 madvise_vma mm/madvise.c:1006 [inline]
 do_madvise+0x2090/0x2c90 mm/madvise.c:1207
 __do_sys_madvise mm/madvise.c:1233 [inline]
 __se_sys_madvise mm/madvise.c:1231 [inline]
 __x64_sys_madvise+0xa2/0xb0 mm/madvise.c:1231
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fd95754bcb9
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:00007fd955786028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fd9577c7090 RCX: 00007fd95754bcb9
RDX: 000000000000000e RSI: 0000000000800000 RDI: 0000200000000000
RBP: 00007fd9575b9bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd9577c7128 R14: 00007fd9577c7090 R15: 00007ffd386343c8
 </TASK>