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| author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2021-01-26 19:29:22 +0100 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2021-01-27 15:00:57 +0100 |
| commit | 16b8d766abe86868597b30cec03152355ee1a91b (patch) | |
| tree | d99ecadbdf2fb59c5538542f9075e559e702bfbc | |
| parent | 58496196071ec817d141c14fe373939ae0df6383 (diff) | |
Fix division by zero
Consider a zero we need to divide with illegal input.
Fixes oss-fuzz 29347
Pick-to: 5.15 6.0
Change-Id: I2aae1d765d2dd81c95d423038ef5cb878d4f8026
Reviewed-by: Robert Löhning <robert.loehning@qt.io>
| -rw-r--r-- | src/gui/painting/qicc.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/painting/qicc.cpp b/src/gui/painting/qicc.cpp index 149a67655a..bacf76997f 100644 --- a/src/gui/painting/qicc.cpp +++ b/src/gui/painting/qicc.cpp @@ -524,6 +524,8 @@ bool parseTRC(const QByteArray &data, const TagEntry &tagEntry, QColorTrc &gamma return false; std::array<quint32_be, 3> parameters = qFromUnaligned<decltype(parameters)>(data.constData() + parametersOffset); + if (parameters[1] == 0) + return false; float g = fromFixedS1516(parameters[0]); float a = fromFixedS1516(parameters[1]); float b = fromFixedS1516(parameters[2]); @@ -537,6 +539,8 @@ bool parseTRC(const QByteArray &data, const TagEntry &tagEntry, QColorTrc &gamma return false; std::array<quint32_be, 4> parameters = qFromUnaligned<decltype(parameters)>(data.constData() + parametersOffset); + if (parameters[1] == 0) + return false; float g = fromFixedS1516(parameters[0]); float a = fromFixedS1516(parameters[1]); float b = fromFixedS1516(parameters[2]); |