This is a note to let you know that I've just added the patch titled
Validate size of EFI GUID partition entries.
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
validate-size-of-efi-guid-partition-entries.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From fa039d5f6b126fbd65eefa05db2f67e44df8f121 Mon Sep 17 00:00:00 2001
From: Timo Warns <[email protected]>
Date: Fri, 6 May 2011 13:47:35 +0200
Subject: Validate size of EFI GUID partition entries.
From: Timo Warns <[email protected]>
commit fa039d5f6b126fbd65eefa05db2f67e44df8f121 upstream.
Otherwise corrupted EFI partition tables can cause total confusion.
Signed-off-by: Timo Warns <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/partitions/efi.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -349,6 +349,12 @@ is_gpt_valid(struct block_device *bdev,
goto fail;
}
+ /* Check that sizeof_partition_entry has the correct value */
+ if (le32_to_cpu((*gpt)->sizeof_partition_entry) != sizeof(gpt_entry)) {
+ pr_debug("GUID Partitition Entry Size check failed.\n");
+ goto fail;
+ }
+
if (!(*ptes = alloc_read_gpt_entries(bdev, *gpt)))
goto fail;
Patches currently in longterm-queue-2.6.32 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/validate-size-of-efi-guid-partition-entries.patch
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