MySQL Bugs: #56115: invalid memory reads when PS selecting from information

Bug #56115	invalid memory reads when PS selecting from information_schema tables.
Submitted:	19 Aug 2010 11:15	Modified:	21 Apr 2011 0:30
Reporter:	Shane Bester (Platinum Quality Contributor)	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Prepared statements	Severity:	S1 (Critical)
Version:	5.5.9, 5.6.1-debug innodb, plugin 1.20.	OS:	Any
Assigned to:	Alexander Nozdrin	CPU Architecture:	Any
Tags:	regression, regression, regression

File:	Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

forget that trx.sql file.... this is the .c testcase. run against mysqld instance under valgrind.

Attachment: bug56115.c (text/plain), 6.26 KiB.

problem is orig_table or it's fields have already been freed.

Attachment: bug56115_valgrind_gdb_5.5.11_output.txt (text/plain), 17.09 KiB.