[Bug 191285] New: lang/expect segfault in exp_spawnv

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191285

            Bug ID: 191285
           Summary: lang/expect segfault in exp_spawnv
           Product: Ports Tree
           Version: Latest
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: kreuter at progn.net

Created attachment 144040
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=144040&action=edit
Replace some ckalloc/ckfree calls in exp_clib.c with malloc/free.

Hello,

lang/expect 5.45_1 segfaults when C programs call exp_spawnv. This has been
reported and fixed in Debian for a while:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588817

Attached is the patch from Debian; it suffices to correct the problem. The
Debian diff also includes a couple of sample programs that reproduce the
segfault; leaving those out here, but they can be found, along with other
patches, here:

http://ftp.de.debian.org/debian/pool/main/e/expect/expect_5.45-2.diff.gz

Thanks,
Richard M Kreuter

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