Blame SOURCES/djvulibre-3.5.27-zero-bytes-check.patch
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From 9658b01431cd7ff6344d7787f855179e73fe81a7 Mon Sep 17 00:00:00 2001
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From: Leon Bottou <leon@bottou.org>
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Date: Mon, 8 Apr 2019 22:55:38 -0400
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Subject: fix bug #298
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diff --git a/libdjvu/GBitmap.h b/libdjvu/GBitmap.h
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index e8e0c9b..ca89a19 100644
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--- a/libdjvu/GBitmap.h
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+++ b/libdjvu/GBitmap.h
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@@ -566,7 +566,7 @@ GBitmap::operator[](int row)
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{
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if (!bytes)
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uncompress();
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- if (row<0 || row>=nrows) {
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+ if (row<0 || row>=nrows || !bytes) {
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#ifndef NDEBUG
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if (zerosize < bytes_per_row + border)
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G_THROW( ERR_MSG("GBitmap.zero_small") );
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@@ -581,7 +581,7 @@ GBitmap::operator[](int row) const
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{
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if (!bytes)
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((GBitmap*)this)->uncompress();
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- if (row<0 || row>=nrows) {
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+ if (row<0 || row>=nrows || !bytes) {
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#ifndef NDEBUG
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if (zerosize < bytes_per_row + border)
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G_THROW( ERR_MSG("GBitmap.zero_small") );
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