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| author | Eirik Aavitsland <eirik.aavitsland@theqtcompany.com> | 2015-03-11 09:00:41 +0100 |
|---|---|---|
| committer | aavit <eirik.aavitsland@theqtcompany.com> | 2015-03-13 10:16:39 +0000 |
| commit | a1cf194c54be57d6ab55dfd26b9562a60532208e (patch) | |
| tree | 985d1185055e60c5617c54ef8d60b5604011ba66 /src/gui | |
| parent | fb7fa2918b558381dd98aff3d3250786300d8a3b (diff) | |
| download | qt4-tools-a1cf194c54be57d6ab55dfd26b9562a60532208e.tar.gz | |
Fixes crash in gif image decoder
Fuzzing test revealed that for certain malformed gif files,
qgifhandler would segfault.
Change-Id: I5bb6f60e1c61849e0d8c735edc3869945e5331c1
(cherry picked from qtbase/ea2c5417fcd374302f5019e67f72af5facbd29f6)
Reviewed-by: Richard J. Moore <rich@kde.org>
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/image/qgifhandler.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gui/image/qgifhandler.cpp b/src/gui/image/qgifhandler.cpp index 5199dd39c2..49aa2a6a51 100644 --- a/src/gui/image/qgifhandler.cpp +++ b/src/gui/image/qgifhandler.cpp @@ -944,6 +944,8 @@ void QGIFFormat::fillRect(QImage *image, int col, int row, int w, int h, QRgb co void QGIFFormat::nextY(unsigned char *bits, int bpl) { + if (out_of_bounds) + return; int my; switch (interlace) { case 0: // Non-interlaced |