Re: Lack of Sanity Checking in file 'pctcl.c' for PostgreSQL 9.4.x

Michael Paquier wrote:
> On Fri, Jun 12, 2015 at 4:22 AM, Bill Parker wrote:
> >    In reviewing some code, in directory 'postgresql-9.4.3/src/pl/tcl',
> > file 'pltcl.c', there are several instances where calls to malloc()
> > are made, but no check for a return value of NULL is made, which
> > would indicate failure.   Additionally, it appears when malloc()
> > returns NULL, previously allocated memory in function 'perm_fmgr_info'
> > is not released, which could lead to memory leaks (even though the
> > comment at the top says 'this routine is a crock' :)
> >
> > If you know how this problem might be fixed, list the solution below:
> > Please feel free to review and comment on the above patch file...
> 
> Oh, nice catch again.
> 
> > I am attaching the patch file to this bug report
> 
> By the way, your patch does not compile properly and is not in-line
> with the project's code format. See the updated patch attached ;)

... or the conventions for allocating memory.  Why not just use palloc()?


-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services