------------[ cut here ]------------
kernel BUG at mm/hugetlb.c:2346!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 25044 Comm: syz.0.4825 Not tainted 6.16.0-rc1-syzkaller-00003-gf09079bd04a9 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:alloc_hugetlb_folio_reserve+0xc3/0xd0 mm/hugetlb.c:2346
Code: e8 e2 d5 a2 ff 48 c7 c7 00 67 e1 8d e8 c6 03 4b 09 4c 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 be d5 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:ffffc900050d7828 EFLAGS: 00010087
RAX: ffffffff821d8932 RBX: ffffffff99adf128 RCX: 0000000000080000
RDX: ffffc9000d88f000 RSI: 00000000000003ec RDI: 00000000000003ed
RBP: 0000000000142cc0 R08: ffffea000122802f R09: 1ffffd4000245005
R10: dffffc0000000000 R11: fffff94000245006 R12: dffffc0000000000
R13: 1ffffffff335be25 R14: ffffea0001228000 R15: 0000000000000000
FS:  00007f0c2a6266c0(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34114ff8 CR3: 0000000060056000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 memfd_alloc_folio+0x20f/0x3f0 mm/memfd.c:89
 memfd_pin_folios+0xa65/0xf60 mm/gup.c:3660
 udmabuf_pin_folios drivers/dma-buf/udmabuf.c:345 [inline]
 udmabuf_create+0x7b5/0xf70 drivers/dma-buf/udmabuf.c:442
 udmabuf_ioctl_create drivers/dma-buf/udmabuf.c:494 [inline]
 udmabuf_ioctl+0x1d1/0x2c0 drivers/dma-buf/udmabuf.c:525
 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: 0033:0x7f0c2978e929
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:00007f0c2a626038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c299b6080 RCX: 00007f0c2978e929
RDX: 0000200000000040 RSI: 0000000040187542 RDI: 0000000000000009
RBP: 00007f0c29810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0c299b6080 R15: 00007f0c29adfa28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:alloc_hugetlb_folio_reserve+0xc3/0xd0 mm/hugetlb.c:2346
Code: e8 e2 d5 a2 ff 48 c7 c7 00 67 e1 8d e8 c6 03 4b 09 4c 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 be d5 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:ffffc900050d7828 EFLAGS: 00010087
RAX: ffffffff821d8932 RBX: ffffffff99adf128 RCX: 0000000000080000
RDX: ffffc9000d88f000 RSI: 00000000000003ec RDI: 00000000000003ed
RBP: 0000000000142cc0 R08: ffffea000122802f R09: 1ffffd4000245005
R10: dffffc0000000000 R11: fffff94000245006 R12: dffffc0000000000
R13: 1ffffffff335be25 R14: ffffea0001228000 R15: 0000000000000000
FS:  00007f0c2a6266c0(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34114ff8 CR3: 0000000060056000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400