OpenAFS Master Repository branch, openafs-stable-1_4_x, updated. openafs-stable-1_4_12-131-g7965816

[Gerrit Code Review]

The following commit has been merged in the openafs-stable-1_4_x branch:
commit 796581621861264a8cfb978cd749546de73825f1
Author: Simon Wilkinson <sxw@your-file-system.com>
Date:   Fri Apr 15 19:40:45 2011 +0100

    dir: Protect against circular hash chains
    
    The dir package didn't protect against circular hash chains when
    performing directory lookups. A corrupt directory could therefore
    cause a client or a fileserver to go into an endless loop if that
    directory contained a loop in its hash chain pointers.
    
    Fix this by exiting the lookup if the hash chain has more elements
    than the total number of entries in a directory. This maximum number
    of entries is taken as being (number of entries per page) * (max
    number of pages), which is considerably more than the real maximum
    value.
    
    Change-Id: I9e281571f3b01bd8de346ee5418df38b2f5edaa1
    Reviewed-on: http://gerrit.openafs.org/5618
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Derrick Brashear <shadow@dementix.org>

 src/dir/dir.c |   35 +++++++++++++++++++++++------------
 1 files changed, 23 insertions(+), 12 deletions(-)

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