[bug #68457] rsdec in the communications package can crash Octave

"Dmitri A. Sergatskov" <[email protected]> Thu, 18 Jun 2026 06:43:34 -0400 (EDT)

Newsgroups	gmane.comp.gnu.octave.bugs
Message-ID	<[email protected]>

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Follow-up Comment #1, bug #68457 (group octave):

I can confirm with octave-12. The coredump:

Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by
`/usr/local/libexec/octave/12.0.0/exec/x86_64-pc-linux-gnu/octave-gui'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fe45063abd1 in decode_rs (data=..., prim=prim@entry=15,
iprim=iprim@entry=-143165576, nroots=nroots@entry=4, fcr=1, 
    drow=drow@entry=0, msb_first=<optimized out>) at
/usr/local/include/octave-12.0.0/octave/../octave/Array-base.h:548
548	  { return m_slice_data[n]; }
[Current thread is 1 (Thread 0x7fe43affd6c0 (LWP 3207599))]
(gdb) bt
#0  0x00007fe45063abd1 in decode_rs
    (data=..., prim=prim@entry=15, iprim=iprim@entry=-143165576,
nroots=nroots@entry=4, fcr=1, drow=drow@entry=0, msb_first=<optimized out>) at
/usr/local/include/octave-12.0.0/octave/../octave/Array-base.h:548
#1  0x00007fe45063be7f in Frsdec (args=..., nargout=nargout@entry=1) at
gf.cc:2130
#2  0x00007fe532fbbd3a in octave::tree_evaluator::execute_builtin_function
    (this=0x7fe42c001510, builtin_function=..., nargout=1, args=...) at
../libinterp/parse-tree/pt-eval.cc:3559
...


See if I can figure out what is going on...

Dmitri.
-- 



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