[MDEV-12206] Query_cache::send_result_to_client() may corrupt THD::query_plan_flags - Jira

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 5.5(EOL)
Fix Version/s: 10.0.22, 10.1.8, 10.2.0, 5.5.55
Component/s: Query Cache
Labels:
None

Description

Due to missing parentheses in a macro definition, a statement is corrupting some flags:

/mariadb/5.5/sql/log_slow.h:30:36: warning: left shift of negative value [-Wshift-negative-value]

#define QPLAN_QC_NO           1 << 6

/mariadb/5.5/sql/sql_cache.cc:2084:52: note: in expansion of macro 'QPLAN_QC_NO'

   thd->query_plan_flags= (thd->query_plan_flags & ~QPLAN_QC_NO) | QPLAN_QC;

This bug was already fixed in MariaDB Server 10.0.22 and merged to 10.1.8 and 10.2.0.

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Assignee:: Marko Mäkelä

Reporter:: Marko Mäkelä

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Dates

Created:: 2017-03-08 08:23

Updated:: 2017-03-08 08:37

Resolved:: 2017-03-08 08:37

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