__kernel_write fs/read_write.c:543 [inline]
 kernel_write+0x13b/0x210 fs/read_write.c:564
 process_sysctl_arg+0x1b2/0x2f0 fs/proc/proc_sysctl.c:1665
 parse_one kernel/params.c:153 [inline]
 parse_args+0x1c2/0x480 kernel/params.c:186
 do_sysctl_args+0x60/0xb0 fs/proc/proc_sysctl.c:1697
 kernel_init+0x68/0x190 init/main.c:1490
 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147
page_owner free stack trace missing
------------[ cut here ]------------
kernel BUG at mm/hugetlb.c:1947!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 4250 Comm: syz.3.16 Not tainted 6.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:free_huge_folio+0x394/0x4d0 mm/hugetlb.c:1947
Code: 48 ff c8 e9 43 fd ff ff 4c 89 ef 48 c7 c6 d0 19 bb 83 e8 3f ee f8 ff 90 0f 0b 4c 89 ef 48 c7 c6 6c 43 be 83 e8 2d ee f8 ff 90 <0f> 0b f3 0f 1e fa 4c 89 e8 48 c1 e0 34 0f 85 a7 fc ff ff 49 f7 45
RSP: 0018:ffffc90003787bb0 EFLAGS: 00010246
RAX: a0dc3b6e15252f00 RBX: 00000000ffffffef RCX: 0000000000000001
RDX: ffffc900000d3e78 RSI: ffffffff83bca5be RDI: 00000000ffffffff
RBP: 057ff00000000040 R08: 0000000000000000 R09: 00000000000000ff
R10: 0000000000000001 R11: ffffffff8106b8f0 R12: fffffffffffffff4
R13: ffffea0005260000 R14: 0000000000001000 R15: 0000000000000000
FS:  00007ff6c03476c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d920008 CR3: 000000010a558000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 memfd_alloc_folio+0x12b/0x1b0 mm/memfd.c:96
 memfd_pin_folios+0x46d/0x5d0 mm/gup.c:3885
 udmabuf_create+0x225/0x570 drivers/dma-buf/udmabuf.c:353
 udmabuf_ioctl_create drivers/dma-buf/udmabuf.c:423 [inline]
 udmabuf_ioctl+0xc4/0x170 drivers/dma-buf/udmabuf.c:454
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x6e/0xc0 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xe0/0x200 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6bf58cda9
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:00007ff6c0347038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff6bf7a5fa0 RCX: 00007ff6bf58cda9
RDX: 0000000020000040 RSI: 0000000040187542 RDI: 0000000000000004
RBP: 00007ff6bf60e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff6bf7a5fa0 R15: 00007ffdadf34ff8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:free_huge_folio+0x394/0x4d0 mm/hugetlb.c:1947
Code: 48 ff c8 e9 43 fd ff ff 4c 89 ef 48 c7 c6 d0 19 bb 83 e8 3f ee f8 ff 90 0f 0b 4c 89 ef 48 c7 c6 6c 43 be 83 e8 2d ee f8 ff 90 <0f> 0b f3 0f 1e fa 4c 89 e8 48 c1 e0 34 0f 85 a7 fc ff ff 49 f7 45
RSP: 0018:ffffc90003787bb0 EFLAGS: 00010246
RAX: a0dc3b6e15252f00 RBX: 00000000ffffffef RCX: 0000000000000001
RDX: ffffc900000d3e78 RSI: ffffffff83bca5be RDI: 00000000ffffffff
RBP: 057ff00000000040 R08: 0000000000000000 R09: 00000000000000ff
R10: 0000000000000001 R11: ffffffff8106b8f0 R12: fffffffffffffff4
R13: ffffea0005260000 R14: 0000000000001000 R15: 0000000000000000
FS:  00007ff6c03476c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d920008 CR3: 000000010a558000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400