ffmpeg | branch: release/2.2 | Andreas Cadhalpun <andreas.cadhal...@googlemail.com> | Wed May 20 00:34:42 2015 +0200| [dfd1d487301b47ad2e15d1061a1dbdde1f4d0775] | committer: Michael Niedermayer
nutdec: abort if EOF is reached in decode_info_header/read_sm_data These loops can take a lot of time if count is very large. Reviewed-by: Michael Niedermayer <michae...@gmx.at> Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> (cherry picked from commit bb23a15df507440deb0dcf25099d321d0f73dc28) Signed-off-by: Michael Niedermayer <michae...@gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dfd1d487301b47ad2e15d1061a1dbdde1f4d0775 --- libavformat/nutdec.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c index 91c6d1b..a63de7d 100644 --- a/libavformat/nutdec.c +++ b/libavformat/nutdec.c @@ -484,7 +484,7 @@ static int decode_info_header(NUTContext *nut) AVIOContext *bc = s->pb; uint64_t tmp, chapter_start, chapter_len; unsigned int stream_id_plus1, count; - int chapter_id, i; + int chapter_id, i, ret; int64_t value, end; char name[256], str_value[1024], type_str[256]; const char *type; @@ -519,7 +519,11 @@ static int decode_info_header(NUTContext *nut) metadata = &s->metadata; for (i = 0; i < count; i++) { - get_str(bc, name, sizeof(name)); + ret = get_str(bc, name, sizeof(name)); + if (ret < 0) { + av_log(s, AV_LOG_ERROR, "get_str failed while decoding info header\n"); + return ret; + } value = get_s(bc); str_value[0] = 0; @@ -831,14 +835,18 @@ static int read_sm_data(AVFormatContext *s, AVIOContext *bc, AVPacket *pkt, int int sample_rate = 0; int width = 0; int height = 0; - int i; + int i, ret; for (i=0; i<count; i++) { uint8_t name[256], str_value[256], type_str[256]; int value; if (avio_tell(bc) >= maxpos) return AVERROR_INVALIDDATA; - get_str(bc, name, sizeof(name)); + ret = get_str(bc, name, sizeof(name)); + if (ret < 0) { + av_log(s, AV_LOG_ERROR, "get_str failed while reading sm data\n"); + return ret; + } value = get_s(bc); if (value == -1) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog