Bug 4934

Summary:	Memory leak in pthread_mutext_timedlock
Product:	uClibc	Reporter:	Markus Gilli <mgi255>
Component:	Threads	Assignee:	unassigned
Status:	NEW ---
Severity:	normal	CC:	buildroot, uclibc-cvs
Priority:	P5
Version:	unspecified
Target Milestone:	---
Hardware:	All
OS:	Linux
Host:		Target:
Build:
Attachments:	leaking test application patch to cleanup wait_node

Description Markus Gilli 2012-03-16 09:02:11 UTC

There is a memory leak in pthread_mutext_timedlock when the lock fails because of the given timeout. I wrote a small test application to reproduce it.

I'm using OpenWRT on a ARM CPU, which in fact used 0.9.29 of uclibc. But i checked the code behind "pthread_mutext_timedlock" and it's identical. So i guess the bug is still in there.

Comment 1 Markus Gilli 2012-03-16 09:03:58 UTC

Created attachment 4148 [details]
leaking test application

Comment 2 Markus Gilli 2012-03-16 15:43:18 UTC

Created attachment 4160 [details]
patch to cleanup wait_node

i've found the leak in __pthread_alt_timedlock. The cleanup was missing if the timeout happens.