system/ambient: Fix tainted buffer access

Fix tainted access to the receive buffer. Detected by CodeSonar 1078252
sonydevworld · Mar 25, 2022 · 57752f0 · 57752f0
1 parent f43fa24
commit 57752f0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sdk/system/ambient/ambient.c b/sdk/system/ambient/ambient.c
@@ -321,7 +321,7 @@ int ambient_send(FAR ambient_ctx_t *ctx)
 
   usleep(30 * 1000);
 
-  ret = recv(sockfd, iobuffer, IOBUFFER_MAXLEN, 0);
+  ret = recv(sockfd, iobuffer, IOBUFFER_MAXLEN - 1, 0);
   if (ret < 0)
     {
       nerr("ERROR: recv failed: %d\n", errno);