diff --git a/lib/libc/gen/memfd_create.c b/lib/libc/gen/memfd_create.c
index b26d638656a4..78131f46d7b1 100644
--- a/lib/libc/gen/memfd_create.c
+++ b/lib/libc/gen/memfd_create.c
@@ -1,131 +1,121 @@
 /*
  * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice(s), this list of conditions and the following disclaimer as
  *    the first lines of this file unmodified other than the possible
  *    addition of one or more copyright notices.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice(s), this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <sys/param.h>
 #include <sys/filio.h>
 #include <sys/mman.h>
 
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "libc_private.h"
 
 #define	MEMFD_NAME_PREFIX	"memfd:"
 
 /*
  * The path argument is passed to the kernel, but the kernel doesn't currently
  * do anything with it.  Linux exposes it in linprocfs for debugging purposes
  * only, but our kernel currently will not do the same.
  */
 int
 memfd_create(const char *name, unsigned int flags)
 {
 	char memfd_name[NAME_MAX + 1];
-	size_t namelen, *pgs, pgsize;
+	size_t pgs[MAXPAGESIZES];
+	size_t namelen, pgsize;
 	struct shm_largepage_conf slc;
 	int error, fd, npgs, oflags, pgidx, saved_errno, shmflags;
 
 	if (name == NULL) {
 		errno = EBADF;
 		return (-1);
 	}
 	namelen = strlen(name);
 	if (namelen + sizeof(MEMFD_NAME_PREFIX) - 1 > NAME_MAX) {
 		errno = EINVAL;
 		return (-1);
 	}
 	if ((flags & ~(MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_HUGETLB |
 	    MFD_HUGE_MASK)) != 0) {
 		errno = EINVAL;
 		return (-1);
 	}
 	/* Size specified but no HUGETLB. */
 	if ((flags & MFD_HUGE_MASK) != 0 && (flags & MFD_HUGETLB) == 0) {
 		errno = EINVAL;
 		return (-1);
 	}
 
 	/* We've already validated that we're sufficiently sized. */
 	snprintf(memfd_name, NAME_MAX + 1, "%s%s", MEMFD_NAME_PREFIX, name);
 	oflags = O_RDWR;
 	shmflags = 0;
 	if ((flags & MFD_CLOEXEC) != 0)
 		oflags |= O_CLOEXEC;
 	if ((flags & MFD_ALLOW_SEALING) != 0)
 		shmflags |= SHM_ALLOW_SEALING;
 	if ((flags & MFD_HUGETLB) != 0)
 		shmflags |= SHM_LARGEPAGE;
 	else
 		shmflags |= SHM_GROW_ON_WRITE;
 	fd = __sys_shm_open2(SHM_ANON, oflags, 0, shmflags, memfd_name);
 	if (fd == -1 || (flags & MFD_HUGETLB) == 0)
 		return (fd);
 
-	pgs = NULL;
-	npgs = getpagesizes(NULL, 0);
+	npgs = getpagesizes(pgs, nitems(pgs));
 	if (npgs == -1)
 		goto clean;
-	pgs = calloc(npgs, sizeof(size_t));
-	if (pgs == NULL)
-		goto clean;
-	error = getpagesizes(pgs, npgs);
-	if (error == -1)
-		goto clean;
 	pgsize = (size_t)1 << ((flags & MFD_HUGE_MASK) >> MFD_HUGE_SHIFT);
 	for (pgidx = 0; pgidx < npgs; pgidx++) {
 		if (pgsize == pgs[pgidx])
 			break;
 	}
 	if (pgidx == npgs) {
 		errno = EOPNOTSUPP;
 		goto clean;
 	}
-	free(pgs);
-	pgs = NULL;
 
 	memset(&slc, 0, sizeof(slc));
 	slc.psind = pgidx;
 	slc.alloc_policy = SHM_LARGEPAGE_ALLOC_DEFAULT;
 	error = ioctl(fd, FIOSSHMLPGCNF, &slc);
 	if (error == -1)
 		goto clean;
 	return (fd);
 
 clean:
 	saved_errno = errno;
 	close(fd);
-	free(pgs);
 	errno = saved_errno;
 	return (-1);
 }