Bug 13308: Verify and reject obviously broken modes.
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@ -328,6 +328,12 @@ DDCModeFromDetailedTiming(int scrnIndex, struct detailed_timings *timing,
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Mode->VSyncEnd = Mode->VSyncStart + timing->v_sync_width;
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Mode->VTotal = timing->v_active + timing->v_blanking;
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/* perform basic check on the detail timing */
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if (Mode->HSyncEnd > Mode->HTotal || Mode->VSyncEnd > Mode->VTotal) {
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xfree(Mode);
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return NULL;
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}
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xf86SetModeDefaultName(Mode);
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/* We ignore h/v_size and h/v_border for now. */
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