Index: stand/efi/libefi/efipart.c
===================================================================
--- stand/efi/libefi/efipart.c
+++ stand/efi/libefi/efipart.c
@@ -977,10 +977,12 @@
 	struct disk_devdesc *dev = (struct disk_devdesc *)devdata;
 	pdinfo_t *pd;
 	EFI_BLOCK_IO *blkio;
+	EFI_PHYSICAL_ADDRESS addr = 0;
 	uint64_t off, disk_blocks, d_offset = 0;
 	char *blkbuf;
 	size_t blkoff, blksz;
 	int error;
+	uint32_t npages;
 	uint64_t diskend, readstart;
 
 	if (dev == NULL || blk < 0)
@@ -1040,11 +1042,13 @@
 	/*
 	 * The buffer size is not a multiple of the media block size.
 	 */
-	blkbuf = malloc(blkio->Media->BlockSize);
-	if (blkbuf == NULL)
+	npages = EFI_SIZE_TO_PAGES(blkio->Media->BlockSize);
+	error = BS->AllocatePages(AllocateAnyPages, EfiLoaderData, npages,
+	    &addr);
+	if (EFI_ERROR(error))
 		return (ENOMEM);
 
-	error = 0;
+	blkbuf = (char *)addr;
 	blk = off / blkio->Media->BlockSize;
 	blkoff = off % blkio->Media->BlockSize;
 	blksz = blkio->Media->BlockSize - blkoff;
@@ -1062,6 +1066,6 @@
 		blksz = blkio->Media->BlockSize;
 	}
 
-	free(blkbuf);
+	BS->FreePages(addr, npages);
 	return (error);
 }