diff --git a/src/internal/poll/copy_file_range_linux.go b/src/internal/poll/copy_file_range_linux.go
index 1635bb1bfc..fc34aef4cb 100644
--- a/src/internal/poll/copy_file_range_linux.go
+++ b/src/internal/poll/copy_file_range_linux.go
@@ -35,6 +35,7 @@ func kernelVersion() (major int, minor int) {
 			if vi >= len(values) {
 				break
 			}
+			value = 0
 		}
 	}
 	switch vi {
diff --git a/src/net/sock_linux.go b/src/net/sock_linux.go
index 4d91001937..9f62ed3dee 100644
--- a/src/net/sock_linux.go
+++ b/src/net/sock_linux.go
@@ -27,6 +27,7 @@ func kernelVersion() (major int, minor int) {
 			if vi >= len(values) {
 				break
 			}
+			value = 0
 		}
 	}
 	switch vi {