From: Seonah Moon <seonah1.moon@samsung.com>
Date: Tue, 27 Aug 2024 07:46:40 +0000 (+0900)
Subject: Fix thread-safety issue
X-Git-Tag: accepted/tizen/unified/20241011.010700^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fheads%2Faccepted%2Ftizen_unified_toolchain;p=platform%2Fcore%2Fapi%2Fnsd.git

Fix thread-safety issue

Change-Id: I8b23fb9836f1acbfc191fd3bdb85789dca9e5a35
---

diff --git a/src/dns-sd/dns-sd.c b/src/dns-sd/dns-sd.c
index 8f40f2f..b1922d8 100644
--- a/src/dns-sd/dns-sd.c
+++ b/src/dns-sd/dns-sd.c
@@ -1350,7 +1350,7 @@ static int __dnssd_getaddrinfo(dnssd_handle_s *dnssd_handle, unsigned int flags,
 		return DNSSD_ERROR_OPERATION_FAILED;
 	}
 
-	if (!local_handle) {
+	if (!local_handle || __dnssd_check_handle_validity(local_handle) == false) {
 		DNSSD_LOGE("Failed to get local_handle");
 		return DNSSD_ERROR_OUT_OF_MEMORY;
 	}
@@ -1404,6 +1404,12 @@ static void __dnssd_resolve_reply_cb(DNSServiceRef sd_ref, unsigned int flags,
 		return;
 	}
 
+	if (__dnssd_check_resolve_reply_data_validity(resolve_data) == NULL) {
+		DNSSD_LOGD("Invalid resolve_data[%p]", resolve_data);
+		DNSSD_UNLOCK;
+		return;
+	}
+
 	/* Get Address Info details and send browse callback */
 	__dnssd_getaddrinfo(resolve_data->dnssd_handle, flags, if_index,
 			host_name, resolve_data->service_name, fullname,