Blame SOURCES/tigervnc-pixelformat-sanity-checks.patch
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diff --git a/common/rfb/PixelFormat.cxx b/common/rfb/PixelFormat.cxx
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index 76051dc..a9d015d 100644
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--- a/common/rfb/PixelFormat.cxx
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+++ b/common/rfb/PixelFormat.cxx
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@@ -75,7 +75,8 @@ PixelFormat::PixelFormat(int b, int d, bool e, bool t,
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redMax(rm), greenMax(gm), blueMax(bm),
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redShift(rs), greenShift(gs), blueShift(bs)
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{
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- assert(isSane());
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+ if (!isSane())
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+ throw Exception("invalid pixel format");
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updateState();
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}
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@@ -672,8 +673,16 @@ bool PixelFormat::isSane(void)
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return false;
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totalBits = bits(redMax) + bits(greenMax) + bits(blueMax);
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- if (totalBits > bpp)
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+ if (totalBits > depth)
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+ return false;
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+
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+ if ((bits(redMax) + redShift) > bpp)
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+ return false;
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+ if ((bits(greenMax) + greenShift) > bpp)
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return false;
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+ if ((bits(blueMax) + blueShift) > bpp)
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+ return false;
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+
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if (((redMax << redShift) & (greenMax << greenShift)) != 0)
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return false;
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