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  1. MariaDB Server
  2. MDEV-21766

Forbid XID with empty 'gtrid'

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • None
    • 10.5.2
    • XA
    • None

    Description

      XID that has empty 'gtrid' or 'bqual' is not permitted by the XA spec

      struct xid_t {
      		 
      long formatID;
      		 
       /∗ format identifier ∗/
      		 
      long gtrid_length; /∗ value 1-64 ∗/
      		 
      long bqual_length; /∗ value 1-64 ∗/
      		 
      char data[XIDDATASIZE];
      		 
      };
      		 
      typedef struct xid_t XID;

      but is accepted. E.g

      --error 0
      		 
      XA START '',''

      Notice that in the following both

      XA START 'something'; /* or */
      		 
      XA START 'something','';

      bqual remains empty which is OK.

      Attachments

        Issue Links

          relates to

          Task - A task that needs to be done. MDEV-742 LP:803649 - Xa recovery failed on client disconnection

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31928 Assertion `xid->gtrid_length + xid->bqual_length < 128' failed in void trx_undo_write_xid(trx_ulogf_t*, const XID*, mtr_t*)

          • Major - Major loss of function.
          • Closed

          Activity

            People

              svoj Sergey Vojtovich
              Elkin Andrei Elkin
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              Dates

                Created:
                Updated:
                Resolved:

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