Fix code scanning alert #29: Incorrect conversion between integer types

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cooljeanius · Sep 20, 2024 · 0f5ca01 · 0f5ca01
1 parent f4c397a
commit 0f5ca01
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/libgo/go/net/http/pprof/pprof.go b/libgo/go/net/http/pprof/pprof.go
@@ -202,6 +202,10 @@ func Symbol(w http.ResponseWriter, r *http.Request) {
 		}
 		pc, _ := strconv.ParseUint(string(word), 0, 64)
 		if pc != 0 {
+			if pc > ^uint64(0)>>1 {
+				fmt.Fprintf(&buf, "address out of range: %v\n", pc)
+				continue
+			}
 			f := runtime.FuncForPC(uintptr(pc))
 			if f != nil {
 				fmt.Fprintf(&buf, "%#x %s\n", pc, f.Name())