lkml.org 
[lkml]   [2012]   [Feb]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[PATCH 19/91] Validate size of EFI GUID partition entries.
    2.6.27-longterm review patch.  If anyone has any objections, please let us know.

    ------------------

    commit fa039d5f6b126fbd65eefa05db2f67e44df8f121 upstream.

    Otherwise corrupted EFI partition tables can cause total confusion.

    Signed-off-by: Timo Warns <warns@pre-sense.de>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
    ---
    fs/partitions/efi.c | 6 ++++++
    1 files changed, 6 insertions(+), 0 deletions(-)

    Index: longterm-2.6.27/fs/partitions/efi.c
    ===================================================================
    --- longterm-2.6.27.orig/fs/partitions/efi.c 2012-02-05 22:34:34.453915054 +0100
    +++ longterm-2.6.27/fs/partitions/efi.c 2012-02-05 22:34:37.590915121 +0100
    @@ -343,6 +343,12 @@
    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;




    \
     
     \ /
      Last update: 2012-02-05 23:53    [W:0.019 / U:0.112 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site