diff --git a/drivers/char/adsprpc.c b/drivers/char/adsprpc.c
index 5fdd69044425..3a2a4164b4e4 100644
--- a/drivers/char/adsprpc.c
+++ b/drivers/char/adsprpc.c
@@ -118,6 +118,9 @@
 #define GET_TABLE_IDX_FROM_CTXID(ctxid) \
 	((ctxid & FASTRPC_CTX_TABLE_IDX_MASK) >> FASTRPC_CTX_TABLE_IDX_POS)
 
+#define VALID_FASTRPC_CID(cid) \
+	(cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS)
+
 /* Reserve few entries in context table for critical kernel and static RPC
  * calls to avoid user invocations from exhausting all entries.
  */
@@ -2066,7 +2069,11 @@ static int context_alloc(struct fastrpc_file *fl, uint32_t kernel,
 		if (err)
 			goto bail;
 	}
-
+	VERIFY(err, VALID_FASTRPC_CID(cid));
+	if (err) {
+		err = -ECHRNG;
+		goto bail;
+	}
 	chan = &me->channel[cid];
 
 	spin_lock_irqsave(&chan->ctxlock, irq_flags);