packetizer: flac: check return of block_PeekOffsetBytes

Fixes CID 1666158
6 months ago · cd33e98bad
1 changed files with 4 additions and 3 deletions
--- a/modules/packetizer/flac.c
+++ b/modules/packetizer/flac.c
@ -488,9 +488,10 @@ static block_t *Packetize(decoder_t *p_dec, block_t **pp_block)
            }

            /* Copy from previous sync point up to to current (offset) */
-            block_PeekOffsetBytes( &p_sys->bytestream, p_sys->i_buf_offset,
-                                   &p_sys->p_buf[p_sys->i_buf_offset],
-                                    p_sys->i_offset - p_sys->i_buf_offset );
+            if( block_PeekOffsetBytes( &p_sys->bytestream, p_sys->i_buf_offset,
+                                       &p_sys->p_buf[p_sys->i_buf_offset],
+                                       p_sys->i_offset - p_sys->i_buf_offset ))
+                return NULL;

            /* update crc to include this data chunk */
            for( size_t i = p_sys->i_buf_offset; i < p_sys->i_offset - 2; i++ )