Commit fde52a2f authored by unknown's avatar unknown
Browse files

BUG#24401 - MySQL server crashes if you try to retrieve data from 

            corrupted table

Accessing a table with corrupted column definition results in server
crash.

This is fixed by refusing to open such tables. Affects MyISAM only.
No test case, since it requires crashed table.


myisam/mi_open.c:
  Refuse to open MyISAM table with summary columns length bigger than
  length of the record.
parent f509e774

myisam/mi_open.c

+7 −0
Original line number Diff line number Diff line
@@ -435,6 +435,13 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags) 
      offset+=share->rec[i].length;

    }

    share->rec[i].type=(int) FIELD_LAST;	/* End marker */

    if (offset > share->base.reclength)

    {

      /* purecov: begin inspected */

      my_errno= HA_ERR_CRASHED;

      goto err;

      /* purecov: end */

    }



    if (! lock_error)

    {