From 983a32b48de887cad2e4f6e5df7236a615860c6d Mon Sep 17 00:00:00 2001
From: Tonis Tiigi <tonistiigi@gmail.com>
Date: Wed, 18 Dec 2024 16:19:39 -0800
Subject: [PATCH] solver: protect against nil dereference on uninitialized
 vertex

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
---
 solver/jobs.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/solver/jobs.go b/solver/jobs.go
index d8cce3abdcf7..68b4e53c969e 100644
--- a/solver/jobs.go
+++ b/solver/jobs.go
@@ -734,10 +734,12 @@ func (j *Job) walkProvenance(ctx context.Context, e Edge, f func(ProvenanceProvi
 	visited[e.Vertex.Digest()] = struct{}{}
 	if st, ok := j.list.actives[e.Vertex.Digest()]; ok {
 		st.mu.Lock()
-		if wp, ok := st.op.op.(ProvenanceProvider); ok {
-			if err := f(wp); err != nil {
-				st.mu.Unlock()
-				return err
+		if st.op != nil && st.op.op != nil {
+			if wp, ok := st.op.op.(ProvenanceProvider); ok {
+				if err := f(wp); err != nil {
+					st.mu.Unlock()
+					return err
+				}
 			}
 		}
 		st.mu.Unlock()