[Libreoffice-commits] core.git: Branch 'libreoffice-4-1' - i18npool/source
Stephan Bergmann
sbergman at redhat.com
Tue Oct 29 12:17:17 CET 2013
i18npool/source/breakiterator/breakiterator_th.cxx | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
New commits:
commit f4586edfbfdceb76b5cbd75239d03b325f67e541
Author: Stephan Bergmann <sbergman at redhat.com>
Date: Mon Oct 28 18:03:47 2013 +0100
Do not access nextCellIndex (nor Text) past the end
At least for Winfried CppunitTest_sd_import_tests aborts with triggering the
assert in OUString::operator[] at (presumably past-the-end) index 18 from
com::sun::star::i18n::BreakIterator_th::makeIndex (this=0x2b775adf9440,
Text=..., nStartPos=18) at
i18npool/source/breakiterator/breakiterator_th.cxx:122
com::sun::star::i18n::BreakIterator_CTL::previousCharacters
(this=0x2b775adf9440, Text=..., nStartPos=18,
rLocale=..., nCharacterIteratorMode=1, nCount=1, nDone=@0x7fff9a84a8fc: 0) at
i18npool/source/breakiterator/breakiterator_ctl.cxx:62
com::sun::star::i18n::BreakIteratorImpl::previousCharacters
(this=0x2b775ae00a98, Text=..., nStartPos=18, rLocale=...,
nCharacterIteratorMode=1, nCount=1, nDone=@0x7fff9a84a8fc: 0) at
i18npool/source/breakiterator/breakiteratorImpl.cxx:65
ServerFontLayout::setNeedFallback (this=0xfba5d0, rArgs=..., nCharPos=17,
bRightToLeft=false) at vcl/generic/glyphs/gcach_layout.cxx:114
HbLayoutEngine::layout (this=0xfba670, rLayout=..., rArgs=...) at
vcl/generic/glyphs/gcach_layout.cxx:437
...
and from the preceding if block in BreakIterator_th::makeIndex it indeed looks
like the invariant is that nextCellIndex need not be larger than cellIndexSize
which needs not be larger than Text (ake cachedText) getLength().
Change-Id: Ib92a76020b2bb3902c5e58aa2e6c4e679e51b94a
(cherry picked from commit b2ad9eecf1cda725b1d7fcabd1ebd06895843d20)
Reviewed-on: https://gerrit.libreoffice.org/6467
Reviewed-by: Caolán McNamara <caolanm at redhat.com>
Tested-by: Caolán McNamara <caolanm at redhat.com>
diff --git a/i18npool/source/breakiterator/breakiterator_th.cxx b/i18npool/source/breakiterator/breakiterator_th.cxx
index b5683d2..74527f6 100644
--- a/i18npool/source/breakiterator/breakiterator_th.cxx
+++ b/i18npool/source/breakiterator/breakiterator_th.cxx
@@ -119,7 +119,8 @@ void SAL_CALL BreakIterator_th::makeIndex(const OUString& Text, sal_Int32 nStart
// reset nextCell for new Text
memset(nextCellIndex, 0, cellIndexSize * sizeof(sal_Int32));
}
- else if (nextCellIndex[nStartPos] > 0 || ! is_Thai(Text[nStartPos]))
+ else if (nStartPos >= Text.getLength() || nextCellIndex[nStartPos] > 0
+ || !is_Thai(Text[nStartPos]))
return;
const sal_Unicode* str = cachedText.getStr();
More information about the Libreoffice-commits
mailing list