[Octave-bug-tracker] [bug #36067] faulty mex/oct file with bad pointer assignments can crash Octave

[Nicholas Jankowski]

Follow-up Comment #20, bug #36067 (project octave):

it's been a few years, this could use a reminder from those familiar with the
issue what the remaining trigger case is.

using the attached test code, here's the current output i get. Can't trigger a
crash. But can trigger an error with which:


>> mkoctfile --mex causesegfault.cpp
>> exist('causesegfault.mex','file')
ans = 3
>> exist('causesegfault.mex')
ans = 3
>> exist('causesegfault')
ans = 3
>> which causesegfault
will crash now
error: opening the library 'C:\temp\octave\causesegfault.mex' failed (error
1114): A dynamic link library (DLL) initialization routine failed.
>> causesegfault
will crash now
error: opening the library
'C:\Users\nicholas.jankowski\Desktop\temp\octave\causesegfault.mex' failed
(error 1114): A dynamic link library (DLL) initialization routine failed.


so, even the intended segfault produces an error instead of crashing octave,
but in any case I can't trigger it with exist. is there a better test case to
use now?


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