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[2460] 2009-07-31 Vladimir Serbinenko <address@hidden>
From: |
Vladimir Serbinenko |
Subject: |
[2460] 2009-07-31 Vladimir Serbinenko <address@hidden> |
Date: |
Fri, 31 Jul 2009 16:04:27 +0000 |
Revision: 2460
http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2460
Author: phcoder
Date: 2009-07-31 16:04:27 +0000 (Fri, 31 Jul 2009)
Log Message:
-----------
2009-07-31 Vladimir Serbinenko <address@hidden>
* partmap/pc.c (pc_partition_map_iterate): Check that boot flags are
valid.
Modified Paths:
--------------
trunk/grub2/ChangeLog
trunk/grub2/partmap/pc.c
Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog 2009-07-31 16:01:49 UTC (rev 2459)
+++ trunk/grub2/ChangeLog 2009-07-31 16:04:27 UTC (rev 2460)
@@ -1,3 +1,8 @@
+2009-07-31 Vladimir Serbinenko <address@hidden>
+
+ * partmap/pc.c (pc_partition_map_iterate): Check that boot flags are
+ valid.
+
2009-07-31 Bean <address@hidden>
* fs/xfs.c (grub_xfs_sblock): Change unused5 field to log2_sect and
Modified: trunk/grub2/partmap/pc.c
===================================================================
--- trunk/grub2/partmap/pc.c 2009-07-31 16:01:49 UTC (rev 2459)
+++ trunk/grub2/partmap/pc.c 2009-07-31 16:04:27 UTC (rev 2460)
@@ -121,6 +121,10 @@
if (mbr.signature != grub_cpu_to_le16 (GRUB_PC_PARTITION_SIGNATURE))
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
+ for (i = 0; i < 4; i++)
+ if (mbr.entries[i].flag & 0x7f)
+ return grub_error (GRUB_ERR_BAD_PART_TABLE, "bad boot flag");
+
/* Analyze DOS partitions. */
for (p.index = 0; p.index < 4; p.index++)
{
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