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35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 91833ab6c1a769f82f30dbf126362d079905bfc6 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=A9clairevoyant?=
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<848000+eclairevoyant@users.noreply.github.com>
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Date: Fri, 26 Jun 2026 21:28:41 -0400
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Subject: [PATCH] addfeatures/hmtx: avoid unsigned integer underflow
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---
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c/addfeatures/hotconv/hmtx.cpp | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/c/addfeatures/hotconv/hmtx.cpp b/c/addfeatures/hotconv/hmtx.cpp
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index 9336c986..2d8ca98e 100644
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--- a/c/addfeatures/hotconv/hmtx.cpp
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+++ b/c/addfeatures/hotconv/hmtx.cpp
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@@ -52,12 +52,12 @@ int hmtxFill(hotCtx g) {
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/* Optimize metrics */
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FWord width = hmtx.advanceWidth.back();
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size_t i;
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- for (i = hmtx.advanceWidth.size() - 2; i >= 0; i--) {
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- if (hmtx.advanceWidth[i] != width)
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+ for (i = hmtx.advanceWidth.size(); i >= 2; i--) {
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+ if (hmtx.advanceWidth[i-2] != width)
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break;
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}
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- if (i + 2 != hmtx.advanceWidth.size())
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- hmtx.advanceWidth.resize(i+2);
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+ if (i != hmtx.advanceWidth.size())
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+ hmtx.advanceWidth.resize(i);
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return hmtx.Fill();
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}
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--
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2.54.0
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