MySQL Bugs: #35437: potential crash with ALTER SERVER statement when out of memory

Bug #35437	potential crash with ALTER SERVER statement when out of memory
Submitted:	19 Mar 2008 13:01	Modified:	19 Mar 2008 14:02
Reporter:	Shane Bester (Platinum Quality Contributor)	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Federated storage engine	Severity:	S3 (Non-critical)
Version:	5.1.x	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	alter server, OOM

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Description:
Related to bug #34790 ('create server' doesn't handle out of memory scenario well enough)

In low-memory situations it is possible ALTER SERVER can crash the server.

How to repeat:
Read the code.  Memory allocation failures can be better detected in some places in sql_servers.cc:

alter_server() 
prepare_server_struct_for_update()

Thank you for a bug report.