X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fnistspheredec.c;h=78e938da10e5e65d3efa203a01789c6ae4114158;hb=c81b8e04aa0952a7aec1e08940f29ae501fb6bfd;hp=3ef3843d5e1e21401a9c07098586bca4dc99e064;hpb=67d466d09b105b2b1d3d8da4c21d8975925741ae;p=ffmpeg

diff --git a/libavformat/nistspheredec.c b/libavformat/nistspheredec.c
index 3ef3843d5e1..78e938da10e 100644
--- a/libavformat/nistspheredec.c
+++ b/libavformat/nistspheredec.c
@@ -90,6 +90,8 @@ static int nist_read_header(AVFormatContext *s)
             return 0;
         } else if (!memcmp(buffer, "channel_count", 13)) {
             sscanf(buffer, "%*s %*s %u", &st->codecpar->channels);
+            if (st->codecpar->channels <= 0 || st->codecpar->channels > INT16_MAX)
+                return AVERROR_INVALIDDATA;
         } else if (!memcmp(buffer, "sample_byte_format", 18)) {
             sscanf(buffer, "%*s %*s %31s", format);
 
@@ -109,10 +111,14 @@ static int nist_read_header(AVFormatContext *s)
             sscanf(buffer, "%*s %*s %"SCNd64, &st->duration);
         } else if (!memcmp(buffer, "sample_n_bytes", 14)) {
             sscanf(buffer, "%*s %*s %d", &bps);
+            if (bps > INT16_MAX/8U)
+                return AVERROR_INVALIDDATA;
         } else if (!memcmp(buffer, "sample_rate", 11)) {
             sscanf(buffer, "%*s %*s %d", &st->codecpar->sample_rate);
         } else if (!memcmp(buffer, "sample_sig_bits", 15)) {
             sscanf(buffer, "%*s %*s %d", &st->codecpar->bits_per_coded_sample);
+            if (st->codecpar->bits_per_coded_sample <= 0 || st->codecpar->bits_per_coded_sample > INT16_MAX)
+                return AVERROR_INVALIDDATA;
         } else {
             char key[32], value[32];
             if (sscanf(buffer, "%31s %*s %31s", key, value) == 2) {