syzbot

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WARNING: CPU: 1 PID: 4424 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline]
WARNING: CPU: 1 PID: 4424 at include/linux/fs.h:503 hugetlb_split+0x234/0x2a0 mm/hugetlb.c:4917
Modules linked in:
CPU: 1 PID: 4424 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:503 [inline]
RIP: 0010:hugetlb_split+0x234/0x2a0 mm/hugetlb.c:4917
Code: b5 ff 4c 89 f7 48 89 de 4c 89 fa 31 c9 5b 41 5c 41 5d 41 5e 41 5f 5d eb 7d e8 78 5f b5 ff 0f 0b e9 65 fe ff ff e8 6c 5f b5 ff <0f> 0b e9 2d ff ff ff 48 c7 c1 a4 aa 1f 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900034a79a8 EFLAGS: 00010293
RAX: ffffffff81cb6f84 RBX: 0000200000000000 RCX: ffff8880794ed940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1005f5897e
R10: ffffed1005f5897e R11: 1ffff11005f5897d R12: ffff88801efadc40
R13: dffffc0000000000 R14: ffff88801efadbd0 R15: ffff88801be59838
FS:  00005555940aa500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e363fff CR3: 00000000267c2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vma_adjust+0x46b/0x1c60 mm/mmap.c:737
 vma_adjust include/linux/mm.h:2756 [inline]
 __split_vma+0x3a7/0x500 mm/mmap.c:-1
 mprotect_fixup+0x597/0x7f0 mm/mprotect.c:623
 do_mprotect_pkey+0x754/0xa40 mm/mprotect.c:792
 __do_sys_mprotect mm/mprotect.c:819 [inline]
 __se_sys_mprotect mm/mprotect.c:816 [inline]
 __x64_sys_mprotect+0x7c/0x90 mm/mprotect.c:816
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdc5478eec9
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:00007ffdb35e4b58 EFLAGS: 00000246 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007fdc549e5fa0 RCX: 00007fdc5478eec9
RDX: 0000000000000007 RSI: 0000000000800000 RDI: 0000200000000000
RBP: 00007fdc54811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdc549e5fa0 R14: 00007fdc549e5fa0 R15: 0000000000000003
 </TASK>