FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.


» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
LinkBack Thread Tools
 
Old 02-10-2012, 05:14 PM
Benjamin Marzinski
 
Default kpartx: verify GUID partition entry size

This patch pulls in some kernel code to catch a corrupt GUID partition
table with the wrong size.

Signed-off-by: Boris Ranto <branto@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/gpt.c | 9 +++++++++
1 file changed, 9 insertions(+)

Index: multipath-tools-120123/kpartx/gpt.c
================================================== =================
--- multipath-tools-120123.orig/kpartx/gpt.c
+++ multipath-tools-120123/kpartx/gpt.c
@@ -367,6 +367,15 @@ is_gpt_valid(int fd, uint64_t lba,
}


+ /* Check that sizeof_partition_entry has the correct value */
+ if (__le32_to_cpu((*gpt)->sizeof_partition_entry) != sizeof(gpt_entry)) {
+ // printf("GUID partition entry size check failed.
");
+ free(*gpt);
+ *gpt = NULL;
+ return 0;
+ }
+
+
if (!(*ptes = alloc_read_gpt_entries(fd, *gpt))) {
free(*gpt);
*gpt = NULL;

--
dm-devel mailing list
dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel
 

Thread Tools




All times are GMT. The time now is 10:30 AM.

VBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright 2007 - 2008, www.linux-archive.org