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  1. Lustre
  2. LU-13157

migrate symlink with target name length > 59 cause crash

Details

    • Bug
    • Resolution: Fixed
    • Critical
    • Lustre 2.14.0, Lustre 2.12.5
    • Lustre 2.12.0
    • None
    • 3
    • 9223372036854775807

    Description

      mdd_migrate() allocate 'la_size + 1' for symlink target name, the extra '+1' is a mistake, which will cause read beyond range fault: if target name is 59 bytes long, then it will try to read target name from external block other than inline i_block[15], that's why when target name is shorter than 59 it won't cause any problem.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14988 crash in ll_migrate in racer

          • Major - Major loss of function.
          • Open
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-11578 ldiskfs_map_blocks: comm mdt00_100: lblock 0 mapped to illegal pblock

          • Major - Major loss of function.
          • Resolved

          Activity

            [LU-13157] migrate symlink with target name length > 59 cause crash
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-14988 [ LU-14988 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-1223 [ DDN-1223 ]
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-27 [ JFC-27 ]
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-17 [ JFC-17 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-20 [ JFC-20 ]
            pjones Peter Jones made changes -
            Labels Original: LTS12
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.12.5 [ 14696 ]
            chunteraa Chris Hunter (Inactive) made changes -
            Link New: This issue is related to DDN-1122 [ DDN-1122 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-17 [ JFC-17 ]
            pjones Peter Jones made changes -
            Labels New: LTS12

            People

              laisiyao Lai Siyao
              laisiyao Lai Siyao
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              Dates

                Created:
                Updated:
                Resolved: