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Skip hb_shape if buffer object is immutable

This commit is contained in:
Ebrahim Byagowi 2020-07-30 15:29:43 +04:30 committed by Ebrahim Byagowi
parent 55c41f219f
commit 679fac87df
2 changed files with 4 additions and 4 deletions
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2
src/hb-shape.cc
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@ -132,6 +132,8 @@ hb_shape_full (hb_font_t *font,
unsigned int num_features,
const char * const *shaper_list)
{
if (unlikely (hb_object_is_immutable (buffer))) return false;
hb_shape_plan_t *shape_plan = hb_shape_plan_create_cached2 (font->face, &buffer->props,
features, num_features,
font->coords, font->num_coords,

6
test/fuzzing/hb-shape-fuzzer.cc
View File

@ -35,8 +35,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
hb_buffer_t *buffer = hb_buffer_create ();
hb_buffer_add_utf8 (buffer, text, -1, 0, -1);
hb_buffer_guess_segment_properties (buffer);
if (hb_buffer_get_content_type (buffer) != HB_BUFFER_CONTENT_TYPE_INVALID)
hb_shape (font, buffer, nullptr, 0);
hb_shape (font, buffer, nullptr, 0);
hb_buffer_destroy (buffer);
}
@ -53,8 +52,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
hb_buffer_t *buffer = hb_buffer_create ();
hb_buffer_add_utf32 (buffer, text32, sizeof (text32) / sizeof (text32[0]), 0, -1);
hb_buffer_guess_segment_properties (buffer);
if (hb_buffer_get_content_type (buffer) != HB_BUFFER_CONTENT_TYPE_INVALID)
hb_shape (font, buffer, nullptr, 0);
hb_shape (font, buffer, nullptr, 0);
hb_buffer_destroy (buffer);
hb_font_destroy (font);