kopia lustrzana https://github.com/espressif/esp-idf
mdns: Fix potential null deref reported by fuzzer test
rodzic
33f7009bef
commit
c0e105cc41
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@ -2821,7 +2821,8 @@ static bool _mdns_question_matches(mdns_parsed_question_t * question, uint16_t t
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if (type == MDNS_TYPE_A || type == MDNS_TYPE_AAAA) {
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return true;
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} else if (type == MDNS_TYPE_PTR || type == MDNS_TYPE_SDPTR) {
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if (!strcasecmp(service->service->service, question->service)
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if (question->service && question->proto && question->domain
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&& !strcasecmp(service->service->service, question->service)
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&& !strcasecmp(service->service->proto, question->proto)
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&& !strcasecmp(MDNS_DEFAULT_DOMAIN, question->domain)) {
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return true;
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