21 Sep, 2012

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03 Jan, 2012

1 commit

  • The le64_to_cpu() forces the calculation to be unsigned, with
    the effect that it can underflow leading to an incorrect large
    value.

    This bug only triggers in rare(ish) circumstances, an empty file
    encoded as an extended regular file or a completely sparse file.
    Normally empty files are encoded as a regular file rather than as
    an extended regular file (and the regular file i_blocks calculation
    doesn't have this bug). To save space regular file inodes are
    optimised to encode the most commonly occurring files. Less
    common regular files are encoded using extended regular file inodes
    which contain extra information.

    Empty files with nlinks greater than 1, and or empty files
    with extended attributes are encoded using extended regular file
    inodes and they will hit this bug.

    Signed-off-by: Phillip Lougher

    Phillip Lougher
     

02 Nov, 2011

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26 May, 2011

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18 May, 2010

2 commits


21 Jan, 2010

1 commit


05 Mar, 2009

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05 Jan, 2009

1 commit