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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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Crash happened when one selected data from one of INFORMATION_SCHEMA tables and in order to build its contents server had to open view which used stored function and table or view on which one had not global or database-level privileges (e.g. had only table-level or had no privileges at all). The crash was caused by usage of check_grant() function, which assumes that either number of tables to be inspected by it is limited explicitly or table list used and thd->lex->query_tables_own_last value correspond to each other (the latter should be either 0 or point to next_global member of one of elements of this table list), in conditions when above assumptions were not true. This fix just explicitly limits number of tables to be inspected. Other negative effects which are caused by the fact that thd->lex->query_tables_own_last might not be set properly during processing of I_S tables are less disastrous and will be reported and fixed separetely. mysql-test/r/information_schema_db.result: Fix for bug #18113 "SELECT * FROM information_schema.xxx crashes server" test case mysql-test/t/information_schema_db.test: Fix for bug #18113 "SELECT * FROM information_schema.xxx crashes server" test case sql/sql_acl.cc: added note |
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| README | ||
This is a release of MySQL, a dual-license SQL database server. MySQL is brought to you by the MySQL team at MySQL AB. License information can be found in these files: - For GPL (free) distributions, see the COPYING file. - For commercial distributions, see the MySQLEULA.txt file. For further information about MySQL or additional documentation, see: - The latest information about MySQL: http://www.mysql.com - The current MySQL documentation: http:/dev.mysql.com/doc Some manual sections of special interest: - If you are migrating from an older version of MySQL, please read the "Upgrading from..." section first! - To see what MySQL can do, take a look at the features section. - For installation instructions, see the Installation chapter. - For future plans, see the TODO appendix. - For the new features/bugfix history, see the News appendix. - For the currently known bugs/misfeatures (known errors) see the problems appendix. - For a list of developers and other contributors, see the Credits appendix. A local copy of the MySQL Reference Manual can be found in the Docs directory in GNU Info format. You can also browse the manual online or download it in any of several formats at the URL given earlier in this file. ************************************************************ IMPORTANT: Bug or error reports should be sent to http://bugs.mysql.com.