espressif/esp-protocols
1
0
Fork 1
mirror of https://github.com/espressif/esp-protocols.git synced 2025-07-29 10:17:30 +02:00
Code Issues Packages Projects Releases Wiki Activity

mdns: Fix potential null deref reported by fuzzer test

Browse Source 
* Original commit: espressif/esp-idf@cb5653fd94
This commit is contained in:
David Cermak
2021-12-07 16:17:53 +01:00
committed by suren-gabrielyan-espressif
parent d0f4e68c7a
commit ae381b779f
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
components/mdns/mdns.c
View File

@ -2936,7 +2936,8 @@ static bool _mdns_question_matches(mdns_parsed_question_t * question, uint16_t t
if (type == MDNS_TYPE_A || type == MDNS_TYPE_AAAA) {
return true;
} else if (type == MDNS_TYPE_PTR || type == MDNS_TYPE_SDPTR) {
if (!strcasecmp(service->service->service, question->service)
if (question->service && question->proto && question->domain
&& !strcasecmp(service->service->service, question->service)
&& !strcasecmp(service->service->proto, question->proto)
&& !strcasecmp(MDNS_DEFAULT_DOMAIN, question->domain)) {
return true;