6bcf57eaa3
Simplify copy and add fuzzing coverage
2020-01-15 13:36:01 -08:00
dc03a993d0
Fix collect lookups logic of FeatureTableSubstitution ( #2097 )
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https://crbug.com/oss-fuzz/20036
2020-01-12 14:21:29 +03:30
a32ecc15ae
Fix collect lookups logic of FeatureVariationRecord
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As "Offset to a feature table substitution table, from beginning of the FeatureVariations table."
from https://docs.microsoft.com/en-us/typography/opentype/spec/chapter2 the record should
match its sanitize logic not the reverse way.
Fixes https://crbug.com/oss-fuzz/20021 and https://crbug.com/oss-fuzz/20022
2020-01-11 15:37:24 +03:30
d2ab1ec65b
fixes oss-fuzz 19978: Null-dereference READ ( #2091 )
2020-01-10 07:54:16 +03:30
257a197ae7
Fail serialize when map has incorrect value
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fixes https://crbug.com/oss-fuzz/19956
am not super happy with the fix, guess we should do some check
before the memcpy anyway as @blueshade7 thinks also,
so let's have it or revert it when we have a better approach for the case.
2020-01-09 22:55:45 +03:30
8ed46c3678
[fuzz] minor, add another already fixed case
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https://crbug.com/oss-fuzz/19907
2020-01-07 23:43:53 +03:30
341407f7a5
[fuzz] minor, upload another fixed case
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https://crbug.com/oss-fuzz/19878
2020-01-07 09:10:24 +03:30
7950beecfc
[subset] Fix null pointer dereference in hvar/vvar subset ( #2085 )
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Rest of the code assumes there is at least one subtable, lets return here if not.
* https://crbug.com/oss-fuzz/19827
* https://crbug.com/oss-fuzz/19847
2020-01-06 21:25:00 +03:30
64a45be519
[ubsan] Don't decrease pointer if match_glyph_data is null ( #2048 )
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Similar to fix on https://github.com/harfbuzz/harfbuzz/pull/2022
Fixes https://crbug.com/1023070
2019-11-09 12:25:33 +03:30
84b86a12d9
[fuzz] Remove just added case
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It didn't fail locally but on bots causing timeout, let remove for now.
2019-11-06 09:22:34 +03:30
a8f049c9a1
[fuzz] Upload testcase of https://crbug.com/oss-fuzz/18529
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Apparently false alarm per last comment and was ok locally also but lets have it here also
2019-11-05 22:26:36 +03:30
defe9b6da0
crash fix : Heap-buffer-overflow READ 2
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https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18513
2019-10-25 13:09:47 -07:00
b2fcca6e14
fuzzer crash fix
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https://oss-fuzz.com/testcase-detail/5643107869917184
2019-10-24 16:11:30 -07:00
95ab110cd9
Optimize intersects_array to fix fuzzer timeout.
2019-10-22 13:33:50 -07:00
b33a0d628e
fuzzer crash fix: Null-dereference WRITE
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https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18363
2019-10-22 01:01:08 +03:30
e766783152
[fuzz] Add https://crbug.com/oss-fuzz/17898 testcase
2019-10-21 22:17:06 +03:30
831daf4c76
Enforce HB_MAX_LANGSYS limit during layout subsetting.
2019-10-18 15:10:30 -07:00
d3b984d379
Revert in-house pow10 ( d80a3ea) and fix oss-fuzz/16922
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Probably can be fixed but merging it was wrong so let's revert.
2019-09-02 18:28:03 +04:30
875985cd48
[subset] Don't allow malicious fonts to insert unlimited table headers
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Fixes https://crbug.com/oss-fuzz/16810
2019-08-29 14:51:22 +04:30
269a120f13
[subset] Raise the bar in new vs old table size
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https://crbug.com/oss-fuzz/16740
This is actually an interesting thing that {h,v}mtx allocates as
much as a font pretends to have glyphs but the solution is not
that obvious as regular fonts can have less than actually containing
metrics in their {h,v}mtx. This change raises the bar to consider this
hmtx 4 byte for every glyph case.
Initially we wanted to just find things allocating crazy amount of
memory but having the assert has led to interesting findings also
so let's don't remove the assert and see what we can find elsewhere.
2019-08-25 20:37:00 +04:30
28aba780c4
[subset] Fix blob leak of _subset2 when returns early
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Fixes https://crbug.com/oss-fuzz/16639
2019-08-24 16:11:21 +04:30
b65bad18aa
[fuzz] Don't fail when blob is empty
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And enable more tests able to trig the issue.
2019-07-11 14:31:55 +04:30
8341c0b304
add test case file
2019-06-27 08:43:31 -07:00
90872a29ee
change assert(false) to failure
2019-06-11 12:42:28 -07:00
65e66a2d37
added test data
2019-06-03 16:31:41 -07:00
e1a5ce6aa6
Fix fuzzer crash testcase
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Add a check for stringOffSet(uint16) overflow,
return early if overflow happens
2019-05-24 15:26:20 -04:00
9ef241cd40
[test] Add one more
2019-05-20 11:38:02 -04:00
3efb7af7e2
[STAT] Fix sanitize condition
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Oops!
Fixes https://oss-fuzz.com/testcase-detail/5696825891225600
2019-05-20 11:37:16 -04:00
25a5b287f2
Fix sanitize fail of extension sublookups
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Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=960331
2019-05-10 16:03:20 -07:00
df237d2fe7
[test] Add https://crbug.com/oss-fuzz/14641 testcase
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As 503748d
2019-05-08 14:17:14 -07:00
62c6e17072
[test] Add crbug.com/oss-fuzz/14474 testcase
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Fixed at 6977a95f
2019-04-28 10:55:07 -07:00
ba0386060d
fix oss-fuzz issue 14345
2019-04-18 18:18:05 -04:00
ec2a5dc859
Use class templates for Null objects
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This allows partial-instantiating custom Null object for template Lookup<T>.
Before, this had to be handcoded per instantiation. Apparently I missed
adding one for AAT::ankr.lookupTable, so it was getting the wrong (generic)
null for Lookup object, which is wrong and unsafe.
Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=944346
2019-03-26 16:23:40 -07:00
bcb4e505d6
cff2 subset fuzzer issues ( #1619 )
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* add check to FDArray::serialize
* add test files
* fix off by one
2019-03-15 13:46:25 -07:00
6879efc2c1
[AAT] Fix anchor bound checking, again
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12532
Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=922303
2019-01-17 14:08:02 -05:00
91d774712f
[test] Add test for previous commit
2019-01-14 15:31:31 -05:00
7a6686a589
[AAT] Fix mort ContextualSubtable offset access
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12312
2019-01-14 15:09:14 -05:00
a3fa7d3336
[AAT] Fix ankr table access
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Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=918340
2019-01-14 14:37:36 -05:00
798e98c47b
[CFF] bad offset in Index ( #1476 )
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* Update hb-ot-cff-common.hh
* fix bug
* bummer fix wasn't hit. refix
* additional sanity check
* Added test cases for oss-fuzz issues 11805, 11806
2018-12-12 21:08:15 -05:00
bcb4ecaf68
[CFF] check out of range FD index ( #1477 )
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* add fd index checks to subr subsetter
also added oss-fuzz test case
* undid SubrSubsetParam::is_valid
because already validated by SubrClosures.valid
2018-12-12 20:36:01 -05:00
2941208f1e
[CFF] oss-fuzz issue 11690 ASSERT: substr.offset >= opStart ( #1461 )
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* fix oss-fuzz 11690: substr.offset >= opStart
detect recursive subroutine call & handle as error
* fix build failure
* add minimized test case for oss-fuzz 11690
* removed asserts
2018-12-11 15:21:24 -05:00
ae087d10c2
add minimized test case for oss-fuzz issue 11714
2018-12-05 21:47:34 -08:00
f95324a335
Merge pull request #1457 from harfbuzz/cff-varstore-sanitize
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[CFF] oss-fuzz issue 11713 (CFF2VariationStore::serialize)
2018-12-06 08:33:44 +03:30
9d8f3b0dfb
add minimized test case for oss-fuzz issue 11713
2018-12-05 17:14:51 -08:00
34e3ef8ff3
Merge branch 'master' into cff-subr-sanitize
2018-12-05 15:50:05 -08:00
72d8f76368
add minimized test case for oss-fuzz issue 11691
2018-12-05 15:49:11 -08:00
d9dabc00e9
Merge pull request #1454 from harfbuzz/cff-fixbcd
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[CFF] fix oss-fuzz issue 11674: parse_bcd
2018-12-05 15:39:34 -08:00
6708c5595f
fix oss-fuzz issue 11675 (ASSERT: count <= str.len)
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Also added an additional error check to avail ()
2018-12-05 12:51:18 -08:00
010e2ddb38
minimized test case for oss-fuzz issue 11674
2018-12-05 12:23:58 -08:00
79e7e3445e
Merge pull request #1449 from harfbuzz/cff-fixcharset
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[CFF] fix for oss-fuzz 11657: Charset overrun
2018-12-05 13:25:18 +03:30
ckitagawa
Ebrahim Byagowi
Michiharu Ariza
Qunxin Liu
Garret Rieger
Michiharu Ariza
Behdad Esfahbod
Behdad Esfahbod