diff --git a/CHANGELOG.md b/CHANGELOG.md
index e786b5a..4f986af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -123,6 +123,7 @@
 3. transport: mctp-demux: Don't test socket for non-zero value
 4. requester: Return PLDM_REQUESTER_OPEN_FAIL from pldm_open() on error
 5. pdr: pldm_pdr_fru_record_set_find_by_rsi(): Document reality of return
+6. transport: Fix possible NULL ptr deref in pldm_socket_sndbuf_init()
 
 ## [0.3.0] - 2023-06-23
 
diff --git a/src/transport/socket.c b/src/transport/socket.c
index 6c299a8..8c5dd01 100644
--- a/src/transport/socket.c
+++ b/src/transport/socket.c
@@ -20,7 +20,11 @@
 	ctx->socket = socket;
 
 	fp = fopen("/proc/sys/net/core/wmem_max", "r");
-	if (fp == NULL || fgets(line, sizeof(line), fp) == NULL) {
+	if (fp == NULL) {
+		return -1;
+	}
+
+	if (fgets(line, sizeof(line), fp) == NULL) {
 		fclose(fp);
 		return -1;
 	}