URL:
<https://savannah.gnu.org/bugs/?55475>
Summary: Segmentation fault in relocatep - groff 1.22.3
Project: GNU troff
Submitted by: dannym
Submitted on: Mon 14 Jan 2019 09:49:51 PM UTC
Category: Preprocessor preconv
Severity: 3 - Normal
Item Group: Crash/Not responding
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Details:
relocatep segfaults when libpipeline invokes preconv in a way that preconv
can't find itself in $PATH (and argv[0] not being an absolute path either).
Reason:
libs/libgroff/relocate.cpp relocatep uses curr_prefix as a source for memcpy,
even though set_current_prefix could end up setting it to 0 (for example when
searchpath failed to find a file whose basename is equal to argv[0] in
$PATH).
That causes preconv to segfault in the case above.
Fix:
Add a "configure" option to disable -DENABLE_RELOCATABLE .
It's not customary to have relocatable things like that in UNIX--and with the
advent of namespaces, I suggest not to do it in the case of UNIX at all (what
for?).
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