kubernetes/vendor/github.com/prometheus/procfs/internal/util/readfile.go

// ReadFileNoStat uses io.ReadAll to read contents of entire file.
// This is similar to os.ReadFile but without the call to os.Stat, because
// many files in /proc and /sys report incorrect file sizes (either 0 or 4096).
// Reads a max file size of 1024kB.  For files larger than this, a scanner
// should be used.
func ReadFileNoStat(filename string) ([]byte, error) { … }