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[ENOMEM] popragate packed/packed_map errors to the serializer. 

Will disable further modifications based on a bad state.
This commit is contained in:
Garret Rieger 2020-07-30 15:14:02 -07:00 committed by Ebrahim Byagowi
parent 7f358a55f4
commit 040ed094ef
2 changed files with 3 additions and 0 deletions
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3
src/hb-serialize.hh
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@ -259,6 +259,7 @@ struct hb_serialize_context_t
if (unlikely (packed.in_error ())) { if (unlikely (packed.in_error ())) {
// obj wasn't successfully added to packed, so clean it up otherwise it's // obj wasn't successfully added to packed, so clean it up otherwise it's
// links will be leaked. // links will be leaked.
propagate_error (packed);
obj->fini (); obj->fini ();
return 0; return 0;
} }
@ -266,6 +267,7 @@ struct hb_serialize_context_t
objidx = packed.length - 1; objidx = packed.length - 1;
if (share) packed_map.set (obj, objidx); if (share) packed_map.set (obj, objidx);
propagate_error (packed_map);
return objidx; return objidx;
} }
@ -277,6 +279,7 @@ struct hb_serialize_context_t
current->links.shrink (snap.num_links); current->links.shrink (snap.num_links);
revert (snap.head, snap.tail); revert (snap.head, snap.tail);
} }
void revert (char *snap_head, void revert (char *snap_head,
char *snap_tail) char *snap_tail)
{ {

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test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5661567174311936 Normal file
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