AuroraMiddleware/harfbuzz
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188a0a47c2
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Author SHA1 Message Date
ariza
188a0a47c2 removed default base; replaced w/ bias if required 2020-03-08 22:59:43 +03:30
blueshade7
4c3af7d406 add "add_link()" with bias arg 
issue #2227
 2020-03-08 18:48:56 +03:30
Ebrahim Byagowi
bdf372b24c [subset/cbdt] Release the referenced cbdt table on error 
Just accidentally spotted it, when the table has less than 4 bytes
 2020-03-08 00:49:40 +03:30
Ebrahim Byagowi
0d729b4b72 [avar] Fix out-of-bound read when input is bigger than all the coords 
'i' shouldn't become equal to array's length which as the increament
is happened at end of the loop, if the input is bigger than all the
table coords, it will be equal to array's length.

Fixes https://crbug.com/oss-fuzz/21092
 2020-03-07 13:20:41 +03:30
Ebrahim Byagowi
6924e29f62 [var] Fix hb_ot_var_get_axis_infos's offset semantic 
The API was adding offset to input's infos buffer index also which is
unusual between our APIs and wrong.
 2020-03-06 02:01:04 +03:30
Ebrahim Byagowi
b7617f6b3c [glyf] Update to latests of ttf-parser 2020-03-05 15:08:06 +03:30
ariza
0b29053864 removed unused code 2020-03-05 10:11:23 +03:30
ariza
e8f010d793 removed unused code & data; rename 2020-03-05 10:11:23 +03:30
Garret Rieger
14a7b6f1ab Set hb_buffer_t to use array_t.reverse(). 2020-03-04 16:52:29 -08:00
ariza
5935a1dc0b add pop_discard() calls to errror returns 2020-03-05 01:22:51 +03:30
ariza
c05458ec7f update cff & cff2 subsetters 2020-03-05 01:22:51 +03:30
Ebrahim Byagowi
446d1e3bbc [fuzz] Add more of fixed cases 2020-03-05 00:49:03 +03:30
Ebrahim Byagowi
9004848560 [gvar] Make sure font's num_coords matches with gvar.axisCount 2020-03-04 12:43:26 +03:30
Ebrahim Byagowi
1af3363f9e [gvar] Use hb_array_t instead indexing raw pointers 2020-03-04 12:43:26 +03:30
Ebrahim Byagowi
99b5b3f1b1 [gvar] Make sure TupleVarHeader has the needed size 
Fixes https://crbug.com/oss-fuzz/21026
 2020-03-04 12:43:26 +03:30
Ebrahim Byagowi
b398748d8b
[algs] Add hb_clamp 
Similar to stl and glsl's clamp
 2020-03-04 11:18:19 +03:30
Ebrahim Byagowi
558f922788 [fuzz] Avoid empty memcpy and ubsan complain by length checking before memcpy 2020-03-03 21:39:22 +03:30
Ebrahim Byagowi
6543d166fd [fuzz] Remove the not yet fixed timeout, going to investigate 2020-03-03 21:39:22 +03:30
Ebrahim Byagowi
2bbf1c8673 [fuzz] Add more of supposed to already be fixed cases from Chromium bug tracker 2020-03-03 21:39:22 +03:30
Ebrahim Byagowi
f745777c60 minor, debug bit, ops 2020-03-03 19:14:41 +03:30
Ebrahim Byagowi
f253f06cf3 [fuzz] Add another fixed case 
https://crbug.com/oss-fuzz/14626

another numerous subtables count which is fixed by d38360397
 2020-03-03 19:12:04 +03:30
Ebrahim Byagowi
d383603976
Limit OT::Lookup subtables (#2219) 
Fixes https://crbug.com/oss-fuzz/13943
 2020-03-02 22:41:08 +03:30
Ebrahim Byagowi
29efd964f2
[fuzz] Add cases that marked as wontfix 
Let's see if they were really false alarms, if so, let's just have them.
 2020-03-02 14:22:29 +03:30
Ebrahim Byagowi
60262e4ca9 [var] Build end-points array on gvar itself 2020-02-29 22:57:59 +03:30
Ebrahim Byagowi
cb65150fec
[draw] minor 2020-02-29 16:12:54 +03:30
Ebrahim Byagowi
44169f3396
[draw] Fix invalid rendering of some glyph on Estedad-VF 
Basically reverts 11f3fca so I can do the same tested and better later

Fixes #2215
 2020-02-29 16:04:03 +03:30
Ebrahim Byagowi
86c40b3a1d [fuzz/draw] Call _get_glyph_extents 
Other render related APIs also may be added also later such
as ot-color and future rendering things.
 2020-02-29 14:53:34 +03:30
Michiharu Ariza
5ab50eebd7
collect_unicodes() with clamp, calling add_range() 
Use add_range instead an inner loop, clamp its input number by
number of glyphs a face has.

Even the face cmap12 and 13 have 32-bit hb_codepoint_t, which is here
used to make timeout, face's maxp has 16-bit gid limitation at least for now,
using that makes sure we both fix and the timeout and don't need to change
much things here also in order to support 32-bit gids also someday.

Fixes #2204
 2020-02-29 13:02:29 +03:30
Garret Rieger
414529e45a [subset] Limit the number of feature indices processed during script subsetting. 2020-02-28 16:10:14 -08:00
Garret Rieger
75622b0d24 [subset] Limit the number of features processed in the feature closure. 2020-02-28 16:10:14 -08:00
Garret Rieger
410b4881d0 [subset] Add fuzzer timeout testcase. 2020-02-28 16:10:14 -08:00
Garret Rieger
c66ee213b7 Limit the number of feature indices processed during feature collection. 2020-02-28 16:10:14 -08:00
Ebrahim Byagowi
e57ced5fc0
[gvar] Add other possibly fixed fuzzer case 
Speculatively should've been fixed by 61208401

https://crbug.com/oss-fuzz/20924 related
 2020-02-28 23:29:05 +03:30
Ebrahim Byagowi
758fda728b
[glyf] Don't accept gids higher than maxp's glyphs number 
This specially becomes concerning on sub-components where a gvar table
that is sanitized using maxp's glyphs number overflows when a high gid
accepted here goes to it, maybe an additional check can be put there
also, this however feels to be enough.

Fixes https://crbug.com/oss-fuzz/20944
 2020-02-28 23:19:06 +03:30
Ebrahim Byagowi
e642aab116
[subset] Add source_blob as a hb_subset_context_t field (#2203) 
So no more double sanitizing source table.
 2020-02-28 22:24:25 +03:30
Ebrahim Byagowi
e90213868b Revert "collect_unicodes() to check gid < num_glyphs with cmap 12" 
Didn't fix the case actually, making bots to fail.

This reverts commit 15b43a4104.
 2020-02-28 21:24:51 +03:30
Ebrahim Byagowi
61208401f4
[gvar] Use hb_bytes_t.check_range instead having in house one 
And use TupleVarHeader calculated size for validity check.

Fixes https://crbug.com/oss-fuzz/20919 and possibly other gvar related issues
 2020-02-28 21:09:07 +03:30
Michiharu Ariza
15b43a4104
collect_unicodes() to check gid < num_glyphs with cmap 12 
fixes #2204
 2020-02-28 20:15:39 +03:30
Ebrahim Byagowi
868ecf7b26 [draw] Add fuzzer runner 2020-02-28 19:57:56 +03:30
Qunxin Liu
b0749bfaa5 [subset] GDEF LigCaretList subsetting support 2020-02-28 14:51:52 +03:30
ariza
002f0e20c4 reimplment serialize_int using check_assign() 2020-02-28 14:21:58 +03:30
Ebrahim Byagowi
14b134379d [gvar] Minor, check whether sub_array result also have enough room 2020-02-27 21:01:48 +03:30
Ebrahim Byagowi
8eba66c1c6 [gvar] Fix invalid memory access by refactoring GlyphVarData fetch logic 
Fixes https://crbug.com/oss-fuzz/20906
 2020-02-27 20:26:54 +03:30
Evgeniy Reizner
f44e1dc07d Fix spelling. 2020-02-27 13:33:56 +03:30
Qunxin Liu
5ad761b943 [subset] GDEF MarkGlyphSets subsetting support 2020-02-26 15:15:21 -08:00
Qunxin Liu
fcd7f33bbb [subset] GDEF glyphClassDef subsetting support 
glyphClassDef uses the same ClassDef format. However, glyphClassDef table
uses predefined class values so we do not remap class values.
 2020-02-26 11:10:31 -08:00
Garret Rieger
50129b03a1 Add a reverse () call to hb_array_t. 2020-02-26 11:09:54 -08:00
Garret Rieger
38c6598c1c Switch to C style comments. 2020-02-26 11:09:54 -08:00
Garret Rieger
52b6e0baa0 When serializing cmap14 order the offsets from smallest to largest. 
Current versions of OTS fail fonts with cmap 14's who's last offset does not point to the a block at the end of the table.
 2020-02-26 11:09:54 -08:00
ariza
a99134c5be add oss-fuzz 20886 test file 2020-02-26 09:58:03 -08:00