From 7a604c8d009097d8c02c480ce365ac53c89a8f09 Mon Sep 17 00:00:00 2001
From: MPins <mpinsdorf@gmail.com>
Date: Sun, 27 Apr 2025 23:21:07 -0300
Subject: [PATCH] rpcserver: validate blindCfg.MaxNumPaths

Assert that the blindCfg.MaxNumPaths value is non-zero.
---
 rpcserver.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rpcserver.go b/rpcserver.go
index 26fbedbcb..fe10fa426 100644
--- a/rpcserver.go
+++ b/rpcserver.go
@@ -6200,6 +6200,10 @@ func (r *rpcServer) AddInvoice(ctx context.Context,
 			blindingRestrictions.NumHops = uint8(*blindCfg.NumHops)
 		}
 		if blindCfg.MaxNumPaths != nil {
+			if *blindCfg.MaxNumPaths == 0 {
+				return nil, fmt.Errorf("blinded max num " +
+					"paths cannot be 0")
+			}
 			blindingRestrictions.MaxNumPaths =
 				uint8(*blindCfg.MaxNumPaths)
 		}