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  1. Lustre
  2. LU-13592

Pass buflen to swabbing functions to avoid memory corruption

Details

    • Bug
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      Buflen should be passed to those swabbing functions who need to avoid memory corruption (Please see LU-12811).

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-12811 lustre_swab_fiemap needs to check fm_mapped_extents

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Activity

            [LU-13592] Pass buflen to swabbing functions to avoid memory corruption
            emoly.liu Emoly Liu added a comment -

            Functions lustre_swab_lmv_mds_md() and lustre_swab_lmv_user_md() are not defined in request fields, so they can't use swabber_dumper_helper() to pass buflen. Instead, they are called by ll_dir_get_default_layout().

            Let's keep this ticket open for some time for a double check in case of any memory corruption.

            emoly.liu Emoly Liu added a comment - Functions lustre_swab_lmv_mds_md() and lustre_swab_lmv_user_md() are not defined in request fields, so they can't use swabber_dumper_helper() to pass buflen. Instead, they are called by ll_dir_get_default_layout(). Let's keep this ticket open for some time for a double check in case of any memory corruption.

            People

              emoly.liu Emoly Liu
              emoly.liu Emoly Liu
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              Dates

                Created:
                Updated: