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bab9a8ba0f
* gnu/packages/fontutils.scm (graphite2)[replacement]: New field. (graphite2/fixed): New variable. * gnu/packages/patches/graphite2-CVE-2017-5436.patch, gnu/packages/patches/graphite2-check-code-point-limit.patch, gnu/packages/patches/graphite2-fix-32-bit-wrap-arounds.patch, gnu/packages/patches/graphite2-non-linear-classes-even-number.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them.
50 lines
1.9 KiB
Diff
50 lines
1.9 KiB
Diff
From 348c11e4571b534efdbd58a575bbea979c880b2f Mon Sep 17 00:00:00 2001
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From: Tim Eves <tim_eves@sil.org>
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Date: Wed, 1 Mar 2017 14:23:46 +0700
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Subject: [PATCH] Fix decoding of USV greater than U+110000
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Add test cases too
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---
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src/inc/UtfCodec.h | 4 ++--
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tests/utftest/utftest.cpp | 3 +++
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2 files changed, 5 insertions(+), 2 deletions(-)
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diff --git a/src/inc/UtfCodec.h b/src/inc/UtfCodec.h
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index 3417bac..9dc760f 100644
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--- a/src/inc/UtfCodec.h
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+++ b/src/inc/UtfCodec.h
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@@ -124,7 +124,7 @@ struct _utf_codec<8>
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private:
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static const int8 sz_lut[16];
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static const byte mask_lut[5];
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-
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+ static const uchar_t limit = 0x110000;
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public:
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typedef uint8 codeunit_t;
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@@ -157,7 +157,7 @@ public:
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case 0: l = -1; return 0xFFFD;
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}
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- if (l != seq_sz || toolong)
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+ if (l != seq_sz || toolong || u >= limit)
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{
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l = -l;
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return 0xFFFD;
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diff --git a/tests/utftest/utftest.cpp b/tests/utftest/utftest.cpp
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index 21cb188..a23553a 100644
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--- a/tests/utftest/utftest.cpp
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+++ b/tests/utftest/utftest.cpp
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@@ -8,6 +8,9 @@ struct test8
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unsigned char str[12];
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};
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struct test8 tests8[] = {
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+ { 0, 0, {0xF4, 0x90, 0x80, 0x80, 0, 0, 0, 0, 0, 0, 0, 0} }, // bad(4) [U+110000]
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+ { 0, 0, {0xC0, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, // bad(4) [U+110000]
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+ { 0, 0, {0xA0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, // bad(4) [U+110000]
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{ 4, -1, {0x7F, 0xDF, 0xBF, 0xEF, 0xBF, 0xBF, 0xF4, 0x8F, 0xBF, 0xBF, 0, 0} }, // U+7F, U+7FF, U+FFFF, U+10FFF
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{ 2, 3, {0x7F, 0xDF, 0xBF, 0xF0, 0x8F, 0xBF, 0xBF, 0xF4, 0x8F, 0xBF, 0xBF, 0} }, // U+7F, U+7FF, long(U+FFFF), U+10FFF
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{ 1, 1, {0x7F, 0xE0, 0x9F, 0xBF, 0xEF, 0xBF, 0xBF, 0xF4, 0x8F, 0xBF, 0xBF, 0} }, // U+7F, long(U+7FF), U+FFFF, U+10FFF
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--
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2.12.2
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