------------[ cut here ]------------
WARNING: CPU: 3 PID: 5189 at mm/hugetlb.c:7048 hugetlb_change_protection+0xf2d/0x1a70 mm/hugetlb.c:7048
Modules linked in:
CPU: 3 PID: 5189 Comm: syz-executor297 Not tainted 6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:hugetlb_change_protection+0xf2d/0x1a70 mm/hugetlb.c:7048
Code: 49 89 d5 48 89 d5 41 80 cd 80 e9 be f9 ff ff e8 c9 cd a8 ff 4c 89 e6 48 89 ef e8 de 1b 0f 00 e9 25 f8 ff ff e8 b4 cd a8 ff 90 <0f> 0b 90 48 8b ac 24 80 00 00 00 31 ff 48 89 ee e8 ae c8 a8 ff 48
RSP: 0018:ffffc9000326f860 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888020ed9810 RCX: ffffffff81e49c74
RDX: ffff88802611c880 RSI: ffffffff81e4a49c RDI: 0000000000000007
RBP: 000000000000001f R08: 0000000000000007 R09: 000000000000001f
R10: 000000000000001f R11: ffffffff938d9748 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000020400000 R15: ffff888019de1400
FS:  00005555841b1380(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 0000000026ae6000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 change_protection+0x1235/0x3050 mm/mprotect.c:537
 mprotect_fixup+0x628/0xc90 mm/mprotect.c:653
 do_mprotect_pkey+0x859/0xd70 mm/mprotect.c:809
 __do_sys_mprotect mm/mprotect.c:830 [inline]
 __se_sys_mprotect mm/mprotect.c:827 [inline]
 __x64_sys_mprotect+0x78/0xc0 mm/mprotect.c:827
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7facb62453a9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff5dccc348 EFLAGS: 00000246 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007fff5dccc518 RCX: 00007facb62453a9
RDX: 0000000000000006 RSI: 0000000000800000 RDI: 0000000020000000
RBP: 00007facb62b8610 R08: 00007fff5dccc518 R09: 00007fff5dccc518
R10: 00007fff5dccc518 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff5dccc508 R14: 0000000000000001 R15: 0000000000000001
 </TASK>