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44 lines
1.8 KiB
Diff
44 lines
1.8 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, 29 Sep 2022 22:34:05 +0000
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Subject: [PATCH] Fix OOB crash 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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This fixes the previous partial fix.
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Bug: 248612953
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Bug: 239210579
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Bug: 249151446
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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: I651d1ff64d06b4c30e18ee69772f52a60aa5ff7a
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Change-Id: I651d1ff64d06b4c30e18ee69772f52a60aa5ff7a
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(cherry picked from commit 582927b0d6c6920ee6a04049eaa9e68608cfc888)
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(cherry picked from commit a8265407660edaa1006545a6401d6409c05acb5d)
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Merged-In: I651d1ff64d06b4c30e18ee69772f52a60aa5ff7a
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---
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libs/minikin/FontLanguageListCache.cpp | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libs/minikin/FontLanguageListCache.cpp b/libs/minikin/FontLanguageListCache.cpp
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index 8ef4a1b..2bc39c2 100644
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--- a/libs/minikin/FontLanguageListCache.cpp
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+++ b/libs/minikin/FontLanguageListCache.cpp
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@@ -55,7 +55,7 @@ static size_t toLanguageTag(char* output, size_t outSize, const std::string& loc
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char likelyChars[ULOC_FULLNAME_CAPACITY];
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uErr = U_ZERO_ERROR;
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uloc_addLikelySubtags(output, likelyChars, ULOC_FULLNAME_CAPACITY, &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_addLikelySubtags(\"%s\") failed: %s", output, u_errorName(uErr));
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output[0] = '\0';
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