diff options
author | Michiharu Ariza <ariza@adobe.com> | 2019-03-15 13:46:25 -0700 |
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committer | GitHub <noreply@github.com> | 2019-03-15 13:46:25 -0700 |
commit | bcb4e505d6ffe33e3268a06698e75d6be0e64957 (patch) | |
tree | af139b3b9240abfd5a76076293b624057f777000 | |
parent | 8aaab78efcac81a05ec919be13792c98741ea1b5 (diff) |
cff2 subset fuzzer issues (#1619)
* add check to FDArray::serialize
* add test files
* fix off by one
-rw-r--r-- | src/hb-ot-cff-common.hh | 1 | ||||
-rw-r--r-- | test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5739000398086144 | bin | 0 -> 620 bytes | |||
-rw-r--r-- | test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5760768497156096 | bin | 0 -> 210 bytes | |||
-rw-r--r-- | test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5764268627066880 | bin | 0 -> 687 bytes |
4 files changed, 1 insertions, 0 deletions
diff --git a/src/hb-ot-cff-common.hh b/src/hb-ot-cff-common.hh index c645953e..61e615cf 100644 --- a/src/hb-ot-cff-common.hh +++ b/src/hb-ot-cff-common.hh @@ -525,6 +525,7 @@ struct FDArray : CFFIndexOf<COUNT, FontDict> for (unsigned i = 0; i < fontDicts.length; i++) if (fdmap.includes (i)) { + if (unlikely (fid >= fdCount)) return_trace (false); CFFIndexOf<COUNT, FontDict>::set_offset_at (fid++, offset); offset += FontDict::calculate_serialized_size (fontDicts[i], opszr); } diff --git a/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5739000398086144 b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5739000398086144 Binary files differnew file mode 100644 index 00000000..0dec23fa --- /dev/null +++ b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5739000398086144 diff --git a/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5760768497156096 b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5760768497156096 Binary files differnew file mode 100644 index 00000000..063aab2e --- /dev/null +++ b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5760768497156096 diff --git a/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5764268627066880 b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5764268627066880 Binary files differnew file mode 100644 index 00000000..2b49553d --- /dev/null +++ b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5764268627066880 |