From 26663d45a4bc9b763e01385bdaa2c5801b488573 Mon Sep 17 00:00:00 2001
From: grantseltzer <grantseltzer@gmail.com>
Date: Thu, 12 Dec 2024 08:53:52 -0600
Subject: [PATCH] Nil check for stack traces

Signed-off-by: grantseltzer <grantseltzer@gmail.com>
---
 pkg/dynamicinstrumentation/uploader/stack_trace.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/dynamicinstrumentation/uploader/stack_trace.go b/pkg/dynamicinstrumentation/uploader/stack_trace.go
index f428e2c40e0d24..a0ca4101cba2db 100644
--- a/pkg/dynamicinstrumentation/uploader/stack_trace.go
+++ b/pkg/dynamicinstrumentation/uploader/stack_trace.go
@@ -114,6 +114,9 @@ func pcToLine(procInfo *ditypes.ProcessInfo, pc uint64) (*funcInfo, error) {
 		return nil, fmt.Errorf("invalid file number in dwarf function entry associated with compile unit")
 	}
 
+	if int(fileNumber) >= len(files) || files[fileNumber] == nil {
+		return nil, fmt.Errorf("could not find file")
+	}
 	file = files[fileNumber].Name
 
 	return &funcInfo{