jpeg2000: Initialize code blocks structures in precincts to 0
authorMichael Niedermayer <michaelni@gmx.at>
Mon, 1 Jul 2013 08:01:16 +0000 (10:01 +0200)
committerLuca Barbato <lu_zero@gentoo.org>
Tue, 2 Jul 2013 18:05:45 +0000 (20:05 +0200)
Prevent use of uninitialized memory / valgrind failure.

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
libavcodec/jpeg2000.c

index 51823e6..cd6f58d 100644 (file)
@@ -416,9 +416,9 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
                 if (!prec->zerobits)
                     return AVERROR(ENOMEM);
 
-                prec->cblk = av_malloc_array(prec->nb_codeblocks_width *
-                                             prec->nb_codeblocks_height,
-                                             sizeof(*prec->cblk));
+                prec->cblk = av_mallocz_array(prec->nb_codeblocks_width *
+                                              prec->nb_codeblocks_height,
+                                              sizeof(*prec->cblk));
                 if (!prec->cblk)
                     return AVERROR(ENOMEM);
                 for (cblkno = 0; cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; cblkno++) {