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-rw-r--r--system/icu/CVE-2020-10531.patch118
1 files changed, 0 insertions, 118 deletions
diff --git a/system/icu/CVE-2020-10531.patch b/system/icu/CVE-2020-10531.patch
deleted file mode 100644
index f456b06ec..000000000
--- a/system/icu/CVE-2020-10531.patch
+++ /dev/null
@@ -1,118 +0,0 @@
-From b7d08bc04a4296982fcef8b6b8a354a9e4e7afca Mon Sep 17 00:00:00 2001
-From: Frank Tang <ftang@chromium.org>
-Date: Sat, 1 Feb 2020 02:39:04 +0000
-Subject: [PATCH] ICU-20958 Prevent SEGV_MAPERR in append
-
-See #971
----
- source/common/unistr.cpp | 6 ++-
- source/test/intltest/ustrtest.cpp | 62 +++++++++++++++++++++++++
- source/test/intltest/ustrtest.h | 1 +
- 3 files changed, 68 insertions(+), 1 deletion(-)
-
-diff --git source/common/unistr.cpp source/common/unistr.cpp
-index 901bb3358ba..077b4d6ef20 100644
---- source/common/unistr.cpp
-+++ source/common/unistr.cpp
-@@ -1563,7 +1563,11 @@ UnicodeString::doAppend(const UChar *srcChars, int32_t srcStart, int32_t srcLeng
- }
-
- int32_t oldLength = length();
-- int32_t newLength = oldLength + srcLength;
-+ int32_t newLength;
-+ if (uprv_add32_overflow(oldLength, srcLength, &newLength)) {
-+ setToBogus();
-+ return *this;
-+ }
-
- // Check for append onto ourself
- const UChar* oldArray = getArrayStart();
-diff --git source/test/intltest/ustrtest.cpp source/test/intltest/ustrtest.cpp
-index b6515ea813c..ad38bdf53a3 100644
---- source/test/intltest/ustrtest.cpp
-+++ source/test/intltest/ustrtest.cpp
-@@ -67,6 +67,7 @@ void UnicodeStringTest::runIndexedTest( int32_t index, UBool exec, const char* &
- TESTCASE_AUTO(TestWCharPointers);
- TESTCASE_AUTO(TestNullPointers);
- TESTCASE_AUTO(TestUnicodeStringInsertAppendToSelf);
-+ TESTCASE_AUTO(TestLargeAppend);
- TESTCASE_AUTO_END;
- }
-
-@@ -2310,3 +2311,64 @@ void UnicodeStringTest::TestUnicodeStringInsertAppendToSelf() {
- str.insert(2, sub);
- assertEquals("", u"abbcdcde", str);
- }
-+
-+void UnicodeStringTest::TestLargeAppend() {
-+ if(quick) return;
-+
-+ IcuTestErrorCode status(*this, "TestLargeAppend");
-+ // Make a large UnicodeString
-+ int32_t len = 0xAFFFFFF;
-+ UnicodeString str;
-+ char16_t *buf = str.getBuffer(len);
-+ // A fast way to set buffer to valid Unicode.
-+ // 4E4E is a valid unicode character
-+ uprv_memset(buf, 0x4e, len * 2);
-+ str.releaseBuffer(len);
-+ UnicodeString dest;
-+ // Append it 16 times
-+ // 0xAFFFFFF times 16 is 0xA4FFFFF1,
-+ // which is greater than INT32_MAX, which is 0x7FFFFFFF.
-+ int64_t total = 0;
-+ for (int32_t i = 0; i < 16; i++) {
-+ dest.append(str);
-+ total += len;
-+ if (total <= INT32_MAX) {
-+ assertFalse("dest is not bogus", dest.isBogus());
-+ } else {
-+ assertTrue("dest should be bogus", dest.isBogus());
-+ }
-+ }
-+ dest.remove();
-+ total = 0;
-+ for (int32_t i = 0; i < 16; i++) {
-+ dest.append(str);
-+ total += len;
-+ if (total + len <= INT32_MAX) {
-+ assertFalse("dest is not bogus", dest.isBogus());
-+ } else if (total <= INT32_MAX) {
-+ // Check that a string of exactly the maximum size works
-+ UnicodeString str2;
-+ int32_t remain = INT32_MAX - total;
-+ char16_t *buf2 = str2.getBuffer(remain);
-+ if (buf2 == nullptr) {
-+ // if somehow memory allocation fail, return the test
-+ return;
-+ }
-+ uprv_memset(buf2, 0x4e, remain * 2);
-+ str2.releaseBuffer(remain);
-+ dest.append(str2);
-+ total += remain;
-+ assertEquals("When a string of exactly the maximum size works", (int64_t)INT32_MAX, total);
-+ assertEquals("When a string of exactly the maximum size works", INT32_MAX, dest.length());
-+ assertFalse("dest is not bogus", dest.isBogus());
-+
-+ // Check that a string size+1 goes bogus
-+ str2.truncate(1);
-+ dest.append(str2);
-+ total++;
-+ assertTrue("dest should be bogus", dest.isBogus());
-+ } else {
-+ assertTrue("dest should be bogus", dest.isBogus());
-+ }
-+ }
-+}
-diff --git source/test/intltest/ustrtest.h source/test/intltest/ustrtest.h
-index 218befdcc68..4a356a92c7a 100644
---- source/test/intltest/ustrtest.h
-+++ source/test/intltest/ustrtest.h
-@@ -97,6 +97,7 @@ class UnicodeStringTest: public IntlTest {
- void TestWCharPointers();
- void TestNullPointers();
- void TestUnicodeStringInsertAppendToSelf();
-+ void TestLargeAppend();
- };
-
- #endif