2 files changed, 3 insertions, 3 deletions
diff --git a/thirdparty/libwebp/src/mux/muxi.h b/thirdparty/libwebp/src/mux/muxi.h
index 7bc0b07e9b..ad3e1bdb97 100644
--- a/thirdparty/libwebp/src/mux/muxi.h
+++ b/thirdparty/libwebp/src/mux/muxi.h
@@ -28,8 +28,8 @@ extern "C" {
 // Defines and constants.
 
 #define MUX_MAJ_VERSION 1
-#define MUX_MIN_VERSION 0
-#define MUX_REV_VERSION 3
+#define MUX_MIN_VERSION 1
+#define MUX_REV_VERSION 0
 
 // Chunk object.
 typedef struct WebPChunk WebPChunk;
diff --git a/thirdparty/libwebp/src/mux/muxread.c b/thirdparty/libwebp/src/mux/muxread.c
index 268f6acb53..ae3b876bc5 100644
--- a/thirdparty/libwebp/src/mux/muxread.c
+++ b/thirdparty/libwebp/src/mux/muxread.c
@@ -100,7 +100,7 @@ static int MuxImageParse(const WebPChunk* const chunk, int copy_data,
                          WebPMuxImage* const wpi) {
   const uint8_t* bytes = chunk->data_.bytes;
   size_t size = chunk->data_.size;
-  const uint8_t* const last = bytes + size;
+  const uint8_t* const last = (bytes == NULL) ? NULL : bytes + size;
   WebPChunk subchunk;
   size_t subchunk_size;
   WebPChunk** unknown_chunk_list = &wpi->unknown_;