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Re: [Libvir] PATCH Fix a couple of mem leaks



Daniel P. Berrange wrote:
I ran 'make valgrind' for the first time in too long and found a hanful of
memory leaks in code exercised by the test suite. The attached patch fixes
them all.

+1

I'm sure there are more lurking though - the test suite is mainly focused
on exercising & validating correctness of parsing routines - its not really
tried doing any validation of failure scenaarios. So I fear there's probably
a number of error code paths where we don't cleanup properly, and/or don't
reject invalid data. Its an area which should be addressed by someone with
some copious free time ;-)

Yeah, earlier this month I actually got as far as importing[0] the whole of libvirt into CIL[1]/Blast[2], which could analyse these sorts of bugs without either testing or spending too much time looking at code by hand. (Think: Coverity, but free software). Then work intervened. Given a week to make the tools work we could have regression tests which would analyse the code and find these problems automatically.

Rich.

[0] http://et.redhat.com/~rjones/cil-analysis-of-libvirt/
[1] http://hal.cs.berkeley.edu/cil/
[2] http://mtc.epfl.ch/software-tools/blast/

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