[MDEV-14237] Server crash on query with regexp_substr - Jira

XML

Word

Printable

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.2.9, 10.2(EOL)
Fix Version/s: 10.2.11
Component/s: Data Manipulation - Subquery, Optimizer
Labels:
- regexp
Environment:
Linux Mint 17.3 (Rosa) / Ubuntu 14.04 LTS based 64 bit

Description

select * from (

select regexp_substr('a','^[A-Za-z]+') f

)t

where f = f

causes server reboot. Error in mysql.err is :

Error in `/usr/sbin/mysqld': double free or corruption (out): 0x00007f0730006110 ***

After attaching gdb the cause seems to be in Item_func_regexp_substr::cleanup() function.

Attachments

Activity

People

Assignee:: Igor Babaev

Reporter:: Stanley

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: 2017-11-01 09:39

Updated:: 2017-11-06 17:22

Resolved:: 2017-11-06 17:22

Git Integration

Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.