2002-04-30 Yoshinori K. Okuji <okuji@enbug.org>

From Jean-Jacques Michel <jjmichel@linbox.com>:
	* stage2/boot.c (load_image): For Linux, check if DATA_LEN is
	greater than MULTIBOOT_SEARCH. If that's true, read the rest
	after copying data already read in BUFFER.

ChangeLog

@@ -1,3 +1,10 @@
+2002-04-30  Yoshinori K. Okuji  <okuji@enbug.org>
+
+	From Jean-Jacques Michel <jjmichel@linbox.com>:
+	* stage2/boot.c (load_image): For Linux, check if DATA_LEN is
+	greater than MULTIBOOT_SEARCH. If that's true, read the rest
+	after copying data already read in BUFFER.
+	
 2002-04-30  Yoshinori K. Okuji  <okuji@enbug.org>
 
 	* stage2/boot.c (load_image): For Linux, don't check if the

THANKS

@@ -45,6 +45,7 @@ HORIKAWA Kazunori <kaz-hori@tkd.att.ne.jp>
 Jan Fricke <fricke@uni-greifswald.de>
 Jan Zerebecki <jan.list@elite-pferde.de>
 Jason Thomas <jason@topic.com.au>
+Jean-Jacques Michel <jjmichel@linbox.com>
 Jeremy Katz <katzj@redhat.com>
 Jochen Hoenicke <jochen@gnu.org>
 Johannes Kroeger <hanne@squirrel.owl.de>

stage2/boot.c

@@ -353,7 +353,17 @@ load_image (char *kernel, char *arg, kernel_t suggested_type,
 	      linux_mem_size = 0;
 	  }
 
-	  memmove ((char *) LINUX_SETUP, buffer, data_len + SECTOR_SIZE);
+	  /* It is possible that DATA_LEN is greater than MULTIBOOT_SEARCH,
+	     so the data may have been read partially.  */
+	  if (data_len <= MULTIBOOT_SEARCH)
+	    grub_memmove ((char *) LINUX_SETUP, buffer,
+			  data_len + SECTOR_SIZE);
+	  else
+	    {
+	      grub_memmove ((char *) LINUX_SETUP, buffer, MULTIBOOT_SEARCH);
+	      grub_read ((char *) LINUX_SETUP + MULTIBOOT_SEARCH,
+			 data_len + SECTOR_SIZE - MULTIBOOT_SEARCH);
+	    }
 
 	  if (lh->header != LINUX_MAGIC_SIGNATURE ||
 	      lh->version < 0x0200)