diff options
Diffstat (limited to 'vendor/golang.org/x/net/http2/frame.go')
| -rw-r--r-- | vendor/golang.org/x/net/http2/frame.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go index 81faec7e7..97bd8b06f 100644 --- a/vendor/golang.org/x/net/http2/frame.go +++ b/vendor/golang.org/x/net/http2/frame.go @@ -225,6 +225,11 @@ var fhBytes = sync.Pool{ }, } +func invalidHTTP1LookingFrameHeader() FrameHeader { + fh, _ := readFrameHeader(make([]byte, frameHeaderLen), strings.NewReader("HTTP/1.1 ")) + return fh +} + // ReadFrameHeader reads 9 bytes from r and returns a FrameHeader. // Most users should use Framer.ReadFrame instead. func ReadFrameHeader(r io.Reader) (FrameHeader, error) { @@ -503,10 +508,16 @@ func (fr *Framer) ReadFrame() (Frame, error) { return nil, err } if fh.Length > fr.maxReadSize { + if fh == invalidHTTP1LookingFrameHeader() { + return nil, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", err) + } return nil, ErrFrameTooLarge } payload := fr.getReadBuf(fh.Length) if _, err := io.ReadFull(fr.r, payload); err != nil { + if fh == invalidHTTP1LookingFrameHeader() { + return nil, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", err) + } return nil, err } f, err := typeFrameParser(fh.Type)(fr.frameCache, fh, fr.countError, payload) |