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49 lines
2.1 KiB
Diff
49 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Keith Mok <keithmok@google.com>
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Date: Thu, 15 Sep 2022 22:51:42 +0000
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Subject: [PATCH] Fix OOB read for registerLocaleList
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When the buffer size is equal to string size,
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the func in icu just return warning U_STRING_NOT_TERMINATED_WARNING
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which is a negative number, and U_FAILURE would fail if error number
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greater than zero only.
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This would cause non null terminated string passing into following funcs
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and causing different types of crash
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Bug: 239210579
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Bug: 239328580
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Bug: 239267173
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Test: locale_fuzzer
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Ignore-AOSP-First: security
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Merged-In: Id9c98fc08876656e1f48d12823a24bb7a44bee45
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Change-Id: Id9c98fc08876656e1f48d12823a24bb7a44bee45
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(cherry picked from commit d8a427cc9c8a722b0911af5139b10b0a6aeb0e03)
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Merged-In: Id9c98fc08876656e1f48d12823a24bb7a44bee45
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---
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libs/minikin/FontLanguageListCache.cpp | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/libs/minikin/FontLanguageListCache.cpp b/libs/minikin/FontLanguageListCache.cpp
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index 6b661f0..8ef4a1b 100644
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--- a/libs/minikin/FontLanguageListCache.cpp
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+++ b/libs/minikin/FontLanguageListCache.cpp
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@@ -39,7 +39,7 @@ static size_t toLanguageTag(char* output, size_t outSize, const std::string& loc
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size_t outLength = 0;
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UErrorCode uErr = U_ZERO_ERROR;
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outLength = uloc_canonicalize(locale.c_str(), output, outSize, &uErr);
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- if (U_FAILURE(uErr)) {
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+ if (U_FAILURE(uErr) || (uErr == U_STRING_NOT_TERMINATED_WARNING)) {
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// unable to build a proper language identifier
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ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale.c_str(), u_errorName(uErr));
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output[0] = '\0';
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@@ -64,7 +64,7 @@ static size_t toLanguageTag(char* output, size_t outSize, const std::string& loc
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uErr = U_ZERO_ERROR;
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outLength = uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr);
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- if (U_FAILURE(uErr)) {
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+ if (U_FAILURE(uErr) || (uErr == U_STRING_NOT_TERMINATED_WARNING)) {
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// unable to build a proper language identifier
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ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, u_errorName(uErr));
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output[0] = '\0';
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