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kernel BUG at mm/hugetlb.c:2346!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:alloc_hugetlb_folio_reserve+0xc3/0xd0 mm/hugetlb.c:2346
Code: e8 82 ca a2 ff 48 c7 c7 00 67 e1 8d e8 36 b3 4b 09 4c 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 5e ca a2 ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d3ef828 EFLAGS: 00010087
RAX: ffffffff821d82c2 RBX: ffffffff99adf128 RCX: 0000000000100000
RDX: ffffc9000e3ea000 RSI: 000000000000039b RDI: 000000000000039c
RBP: 0000000000142cc0 R08: ffffea000044802f R09: 1ffffd4000089005
R10: dffffc0000000000 R11: fffff94000089006 R12: dffffc0000000000
R13: 1ffffffff335be25 R14: ffffea0000448000 R15: 0000000000000000
FS:  00007fa71c3736c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558c891a9ff8 CR3: 0000000043f99000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 memfd_alloc_folio+0x20f/0x3f0 mm/memfd.c:89
 memfd_pin_folios+0xa65/0xf60 mm/gup.c:3666
 udmabuf_pin_folios drivers/dma-buf/udmabuf.c:344 [inline]
 udmabuf_create+0x7b5/0xf70 drivers/dma-buf/udmabuf.c:441
 udmabuf_ioctl_create drivers/dma-buf/udmabuf.c:493 [inline]
 udmabuf_ioctl+0x1d1/0x2c0 drivers/dma-buf/udmabuf.c:524
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa71b58e929
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:00007fa71c373038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa71b7b5fa0 RCX: 00007fa71b58e929
RDX: 0000200000000040 RSI: 0000000040187542 RDI: 0000000000000005
RBP: 00007fa71b610b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa71b7b5fa0 R15: 00007ffd2e469cd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:alloc_hugetlb_folio_reserve+0xc3/0xd0 mm/hugetlb.c:2346
Code: e8 82 ca a2 ff 48 c7 c7 00 67 e1 8d e8 36 b3 4b 09 4c 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 5e ca a2 ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d3ef828 EFLAGS: 00010087
RAX: ffffffff821d82c2 RBX: ffffffff99adf128 RCX: 0000000000100000
RDX: ffffc9000e3ea000 RSI: 000000000000039b RDI: 000000000000039c
RBP: 0000000000142cc0 R08: ffffea000044802f R09: 1ffffd4000089005
R10: dffffc0000000000 R11: fffff94000089006 R12: dffffc0000000000
R13: 1ffffffff335be25 R14: ffffea0000448000 R15: 0000000000000000
FS:  00007fa71c3736c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558c891a9ff8 CR3: 0000000043f99000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400