From bf84d28324f1fef11f5dbb39dc6a003d489078d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dario=20Casta=C3=B1=C3=A9?= <dario.castane@datadoghq.com>
Date: Fri, 20 Dec 2024 10:38:43 +0100
Subject: [PATCH] fix(ddtrace/tracer): avoid panic on nil spancontext on
 Extract

---
 ddtrace/tracer/textmap.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ddtrace/tracer/textmap.go b/ddtrace/tracer/textmap.go
index b1b49385fc..06f7589c9a 100644
--- a/ddtrace/tracer/textmap.go
+++ b/ddtrace/tracer/textmap.go
@@ -291,7 +291,7 @@ func (p *chainedPropagator) Extract(carrier interface{}) (*SpanContext, error) {
 						overrideDatadogParentID(ctx2, extractedCtx2, ddCtx)
 					}
 				}
-			} else { // Trace IDs do not match - create span links
+			} else if extractedCtx2 != nil { // Trace IDs do not match - create span links
 				link := SpanLink{TraceID: extractedCtx2.TraceIDLower(), SpanID: extractedCtx2.SpanID(), TraceIDHigh: extractedCtx2.TraceIDUpper(), Attributes: map[string]string{"reason": "terminated_context", "context_headers": getPropagatorName(v)}}
 				if trace := extractedCtx2.trace; trace != nil {
 					if flags := uint32(*trace.priority); flags > 0 { // Set the flags based on the sampling priority