Vboot Reference: Kernel Boot signing utility.

src/platform/vboot_reference/utils/kernel_image.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Functions for generating and manipulating a verified boot kernel image.
  */
 
 #include "kernel_image.h"
 
 #include <fcntl.h>
@@ skipping 107 matching lines @@
   }
 
   /* Read pre-processed public half of the kernel signing key. */
   StatefulMemcpy(&st, &image->kernel_key_version,
                  FIELD_LEN(kernel_key_version));
   image->kernel_sign_key = (uint8_t*) Malloc(kernel_sign_key_len);
   StatefulMemcpy(&st, image->kernel_sign_key, kernel_sign_key_len);
   StatefulMemcpy(&st, image->header_checksum, FIELD_LEN(header_checksum));
 
   /* Read key signature. */
+  image->kernel_key_signature = (uint8_t*) Malloc(kernel_key_signature_len);
   StatefulMemcpy(&st, image->kernel_key_signature,
-                 FIELD_LEN(kernel_key_signature));
+                 kernel_key_signature_len);
 
   /* Read the kernel config. */
   StatefulMemcpy(&st, &image->kernel_version, FIELD_LEN(kernel_version));
   StatefulMemcpy(&st, &image->options.version, FIELD_LEN(options.version));
   StatefulMemcpy(&st, &image->options.kernel_len,
                  FIELD_LEN(options.kernel_len));
   StatefulMemcpy(&st, &image->options.kernel_load_addr,
                  FIELD_LEN(options.kernel_load_addr));
   StatefulMemcpy(&st, &image->options.kernel_entry_addr,
                  FIELD_LEN(options.kernel_entry_addr));
@@ skipping 528 matching lines @@
                                         kernel_signing_key_file,
                                         image->kernel_sign_algorithm))) {
     fprintf(stderr, "Could not compute signature on the kernel.\n");
     return 0;
   }
   image->kernel_signature = (uint8_t*) Malloc(signature_len);
   Memcpy(image->kernel_signature, kernel_signature, signature_len);
   Free(kernel_signature);
   return 1;
 }