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Check the return value of int_range_lookup before using as an array index; it can return -1

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Sam Collinson 2018-04-15 21:46:55 +10:00 committed by Robert Edmonds
parent 8073f6ee23
commit 9b899c9d3b
1 changed files with 4 additions and 0 deletions
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4
protobuf-c/protobuf-c.c
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@ -2239,6 +2239,8 @@ merge_messages(ProtobufCMessage *earlier_msg,
latter_msg->descriptor
->field_ranges,
*earlier_case_p);
if (field_index < 0)
return FALSE;
field = latter_msg->descriptor->fields +
field_index;
} else {
@ -2632,6 +2634,8 @@ parse_oneof_member (ScannedMember *scanned_member,
int_range_lookup(message->descriptor->n_field_ranges,
message->descriptor->field_ranges,
*oneof_case);
if (field_index < 0)
return FALSE;
const ProtobufCFieldDescriptor *old_field =
message->descriptor->fields + field_index;
size_t el_size = sizeof_elt_in_repeated_array(old_field->type);