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midifile: reject midi files with invalid values

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>64 tracks will overflow the track array and a division of 0 will cause
a division by zero later.
This commit is contained in:
Wim Taymans 2026-05-04 14:13:09 +02:00
parent c4b198962c
commit 8cf1164eb6
1 changed files with 6 additions and 0 deletions
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6
src/tools/midifile.c
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@ -182,6 +182,12 @@ static int open_read(struct midi_file *mf, const char *filename, struct midi_fil
if ((res = read_mthd(mf)) < 0)
goto exit_close;
if (mf->info.ntracks > SPA_N_ELEMENTS(mf->tracks) ||
mf->info.division == 0) {
res = -EINVAL;
goto exit_close;
}
mf->tempo = DEFAULT_TEMPO;
mf->tick = 0;