I just had a look at factory package kradio-1.0beta3b_20060920-226.5
In file kradio3/plugins/recording/encoder_ogg.cpp, around line 125
is the code

static void vorbis_comment_add_tag_new(vorbis_comment *vc, const QString &tag, const QString &value)
{
    char *stag   = strdup(tag.ascii());
    char *svalue = strdup(value.utf8());
    vorbis_comment_add_tag(vc, stag, svalue);
    delete stag;
    delete svalue;
}

The return value from strdup should be freed by calling free(), not
by calling delete.

Suggest code rework.