frame.c: validate frame data length is less than samples when adjusting volume

Resolves: #1230
(cherry picked from commit eb427c6e4a32ff6fb9274262e60853684702d1cc)

diff --git a/main/frame.c b/main/frame.c
index 711f9e15f104d6a71d071f948087335d46546bd9..e9e36635309e14f2b6e901904e4f61d3c7da5959 100644 (file)
--- a/main/frame.c
+++ b/main/frame.c
@@ -817,9 +817,7 @@ int ast_frame_adjust_volume_float(struct ast_frame *f, float adjustment)
 
        if ((f->frametype != AST_FRAME_VOICE) || !(ast_format_cache_is_slinear(f->subclass.format))) {
                return -1;
-       }
-
-       if (!adjustment) {
+       } else if (!adjustment || (f->samples > f->datalen)) {
                return 0;
        }