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Use the correct stream position when reading maxSizeOfInstructions from the maxp table (issue 9458)

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Please refer to the `maxp` table specification, found at https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6maxp.html.

Fixes 9458.
This commit is contained in:
Jonas Jenwald 2018-02-07 20:53:44 +01:00
parent 43f1f96b10
commit a18c65ae9f
4 changed files with 524 additions and 1 deletions
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2
src/core/fonts.js
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@ -2351,7 +2351,7 @@ var Font = (function FontClosure() {
} }
font.pos += 4; font.pos += 4;
maxFunctionDefs = font.getUint16(); maxFunctionDefs = font.getUint16();
font.pos += 6; font.pos += 4;
maxSizeOfInstructions = font.getUint16(); maxSizeOfInstructions = font.getUint16();
} }

1
test/pdfs/.gitignore vendored
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@ -67,6 +67,7 @@
!issue9105_reduced.pdf !issue9105_reduced.pdf
!issue9262_reduced.pdf !issue9262_reduced.pdf
!issue9291.pdf !issue9291.pdf
!issue9458.pdf
!bad-PageLabels.pdf !bad-PageLabels.pdf
!decodeACSuccessive.pdf !decodeACSuccessive.pdf
!filled-background.pdf !filled-background.pdf

515
test/pdfs/issue9458.pdf Normal file
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File diff suppressed because one or more lines are too long

7
test/test_manifest.json
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@ -712,6 +712,13 @@
"link": false, "link": false,
"type": "eq" "type": "eq"
}, },
{ "id": "issue9458",
"file": "pdfs/issue9458.pdf",
"md5": "ee54358d8b2fdc75dc8da5220cf8e8da",
"rounds": 1,
"link": false,
"type": "eq"
},
{ "id": "issue5501", { "id": "issue5501",
"file": "pdfs/issue5501.pdf", "file": "pdfs/issue5501.pdf",
"md5": "55a60699728fc92f491a2d7d490474e4", "md5": "55a60699728fc92f491a2d7d490474e4",