== BEFORE-FIX (vulnerable) ==
src=0x20 -> OOB (envy24ht_mixmap[32] OOB read)
src=0x80 -> OOB (envy24ht_mixmap[128] OOB read)
src=0x100 -> OOB (envy24ht_mixmap[256] OOB read)
src=0x200 -> OOB (envy24ht_mixmap[512] OOB read)
src=0x3e0 -> OOB (envy24ht_mixmap[992] OOB read)
== AFTER-FIX ==
src=0x20 -> guarded (returned without indexing)
src=0x80 -> guarded (returned without indexing)
src=0x100 -> guarded (returned without indexing)
src=0x200 -> guarded (returned without indexing)
src=0x3e0 -> guarded (returned without indexing)