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kernel BUG at mm/hugetlb.c:2333!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 2 UID: 0 PID: 8881 Comm: syz.0.729 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0
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+0xac/0xc0 mm/hugetlb.c:2333
Code: a3 d0 00 00 00 e8 44 41 a2 ff 48 c7 c7 40 56 e1 8d e8 18 ff 41 09 48 89 e8 5b 5d 41 5c 41 5d c3 cc cc cc cc e8 25 41 a2 ff 90 <0f> 0b e8 2d 5c 05 00 eb ac 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000322f900 EFLAGS: 00010083
RAX: 0000000000004a8c RBX: ffffffff9a8d8758 RCX: ffffc900046c2000
RDX: 0000000000080000 RSI: ffffffff821795fb RDI: 0000000000000007
RBP: ffffea0001990000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000000aa R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000015
FS:  00007f9c73ff66c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3a3337 CR3: 000000003216c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 memfd_alloc_folio+0x16c/0x3b0 mm/memfd.c:88
 memfd_pin_folios+0xe8c/0x1150 mm/gup.c:3740
 udmabuf_pin_folios drivers/dma-buf/udmabuf.c:346 [inline]
 udmabuf_create+0x641/0x11e0 drivers/dma-buf/udmabuf.c:443
 udmabuf_ioctl_create drivers/dma-buf/udmabuf.c:495 [inline]
 udmabuf_ioctl+0x193/0x310 drivers/dma-buf/udmabuf.c:526
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9c7618cde9
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:00007f9c73ff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9c763a5fa0 RCX: 00007f9c7618cde9
RDX: 0000400000000040 RSI: 0000000040187542 RDI: 0000000000000005
RBP: 00007f9c7620e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9c763a5fa0 R15: 00007fff22734e68
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:alloc_hugetlb_folio_reserve+0xac/0xc0 mm/hugetlb.c:2333
Code: a3 d0 00 00 00 e8 44 41 a2 ff 48 c7 c7 40 56 e1 8d e8 18 ff 41 09 48 89 e8 5b 5d 41 5c 41 5d c3 cc cc cc cc e8 25 41 a2 ff 90 <0f> 0b e8 2d 5c 05 00 eb ac 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000322f900 EFLAGS: 00010083
RAX: 0000000000004a8c RBX: ffffffff9a8d8758 RCX: ffffc900046c2000
RDX: 0000000000080000 RSI: ffffffff821795fb RDI: 0000000000000007
RBP: ffffea0001990000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000000aa R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000015
FS:  00007f9c73ff66c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3a3337 CR3: 000000003216c000 CR4: 0000000000352ef0