Print Page - openmpt123 --render crashes on certain files (realloc(): invalid next size)

Title: openmpt123 --render crashes on certain files (realloc(): invalid next size)
Post by: LivingInTheBits on February 06, 2021, 20:32:17

so i have this nice file (among others) which crashes only with the option --render - playing it works fantastic.

Code Select

$ openmpt123 --force --render 1993.mod

openmpt123 v0.5.4, libopenmpt 0.5.4+r13932.pkg (OpenMPT 1.29.06.00 https://source.openmpt.org/svn/openmpt/tags/libopenmpt-0.5.4@13932 (2020-11-29T15:01:39.790705Z) clean-pkg)
Copyright (c) 2013-2020 OpenMPT developers <https://lib.openmpt.org/>

Filename...: 1993.mod
Size.......: 192kB
Type.......: mod (ProTracker MOD (M.K.))
Tracker....: Generic ProTracker or compatible
Title......: <<<<<< 1993 >>>>>>
Duration...: 08:50.340
Subsongs...: 1
Channels...: 4
Orders.....: 56
Patterns...: 41
Instruments: 0
Samples....: 31

realloc(): invalid next size
Abgebrochen (Speicherabzug geschrieben)

as said, this happens with several other files too, but many go without issues.

I attach the file for testing.

i also tested it with the svn version (0.6.0-pre.5)

is there anything i can do or needs this fixing?

Thank you a lot for this wonderful software!

Title: Re: openmpt --render crashes on certain files (realloc(): invalid next size)
Post by: manx on February 06, 2021, 20:41:12

Which linux distribution are you using? What's the libsndfile version?

Title: Re: openmpt --render crashes on certain files (realloc(): invalid next size)
Post by: LivingInTheBits on February 06, 2021, 20:54:57

i'm on arch: 5.10.13-arch1-1

libsndfile 1.0.28-3

Title: Re: openmpt --render crashes on certain files (realloc(): invalid next size)
Post by: manx on February 06, 2021, 21:03:54

Quote from: LivingInTheBits on February 06, 2021, 20:54:57
i'm on arch: 5.10.13-arch1-1
libsndfile 1.0.28-3

Quote from: LivingInTheBits on February 06, 2021, 20:32:17
is there anything i can do or needs this fixing?

You can complain very loudly to arch maintainers for shipping libsndfile with known exploitable bugs of which one was fixed by me 3,5 years ago. See https://github.com/libsndfile/libsndfile/issues/292 (https://github.com/libsndfile/libsndfile/issues/292) for the bug report and https://github.com/libsndfile/libsndfile/commit/cf7a8182c2642c50f1cf90dddea9ce96a8bad2e8 (https://github.com/libsndfile/libsndfile/commit/cf7a8182c2642c50f1cf90dddea9ce96a8bad2e8) for the fix.

You could also use openmpt123 --render with --output-type flac (no headroom >0dBfs) or --output-type raw (no metadata) as a work-around, or try some other than wav output format supported via libsndfile.

Title: Re: openmpt --render crashes on certain files (realloc(): invalid next size)
Post by: LivingInTheBits on February 06, 2021, 21:06:38

hehe - ok, thank you very very much - the hint with flac is working! wonderful! thank you a lot (i will look if i can complain at the maintainers of arch =) )

Title: Re: openmpt --render crashes on certain files (realloc(): invalid next size)
Post by: LivingInTheBits on February 06, 2021, 21:18:42

added your info to another vulnerability-task in the bugtracker ... sadly nobody seems to feel responsible =)

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OpenMPT => Help and Questions => Topic started by: LivingInTheBits on February 06, 2021, 20:32:17