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openSUSE:Leap:15.3
graphviz-addons.15284
graphviz-null_dereference.patch
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File graphviz-null_dereference.patch of Package graphviz-addons.15284
diff --git a/lib/dotgen/conc.c b/lib/dotgen/conc.c index dd13e936b..f7307d23b 100644 --- a/lib/dotgen/conc.c +++ b/lib/dotgen/conc.c @@ -159,7 +159,11 @@ static void rebuild_vlists(graph_t * g) for (r = GD_minrank(g); r <= GD_maxrank(g); r++) { lead = GD_rankleader(g)[r]; - if (GD_rank(dot_root(g))[r].v[ND_order(lead)] != lead) { + if (lead == NULL) { + agerr(AGERR, "rebuiltd_vlists: lead is null for rank %d\n", r); + longjmp(jbuf, 1); + } + else if (GD_rank(dot_root(g))[r].v[ND_order(lead)] != lead) { agerr(AGERR, "rebuiltd_vlists: rank lead %s not in order %d of rank %d\n", agnameof(lead), ND_order(lead), r); longjmp(jbuf, 1);
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