X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fboadec.c;h=74a6ceecb15438f8473457db6465b0ff1f18aea4;hb=7b6012efaae549b8e624876dba9550cb003f98b1;hp=730e9573d5a30c8af64b6d3c19f55c1df6198556;hpb=22219a3ac46ac18f797c94e4619a34728556786c;p=ffmpeg

diff --git a/libavformat/boadec.c b/libavformat/boadec.c
index 730e9573d5a..74a6ceecb15 100644
--- a/libavformat/boadec.c
+++ b/libavformat/boadec.c
@@ -24,7 +24,7 @@
 #include "avformat.h"
 #include "internal.h"
 
-static int probe(AVProbeData *p)
+static int probe(const AVProbeData *p)
 {
     if (p->buf_size < 2096)
         return 0;
@@ -54,12 +54,12 @@ static int read_header(AVFormatContext *s)
     avio_rl32(s->pb);
     st->codecpar->sample_rate = avio_rl32(s->pb);
     st->codecpar->channels    = avio_rl32(s->pb);
-    if (st->codecpar->channels > FF_SANE_NB_CHANNELS)
+    if (st->codecpar->channels > FF_SANE_NB_CHANNELS || st->codecpar->channels <= 0)
         return AVERROR(ENOSYS);
     s->internal->data_offset = avio_rl32(s->pb);
     avio_r8(s->pb);
     st->codecpar->block_align = avio_rl32(s->pb);
-    if (st->codecpar->block_align > INT_MAX / FF_SANE_NB_CHANNELS)
+    if (st->codecpar->block_align > INT_MAX / FF_SANE_NB_CHANNELS || st->codecpar->block_align <= 0)
         return AVERROR_INVALIDDATA;
     st->codecpar->block_align *= st->codecpar->channels;