diff options
author | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-05-23 00:02:07 +0300 |
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committer | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-05-23 18:42:35 +0300 |
commit | ed4932a6941f784a9198853d21bedbf8caa1faa8 (patch) | |
tree | 668d87dbc08d7d40b6128cd937cfda36f359143f /libavformat | |
parent | 4ae15605f6298d8369a1f1374596b52a3839c703 (diff) |
nutdec: fix various memleaks on failure
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Diffstat (limited to 'libavformat')
-rw-r--r-- | libavformat/nutdec.c | 88 |
1 files changed, 62 insertions, 26 deletions
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c index eeaf8bf9ae..13fb39924d 100644 --- a/libavformat/nutdec.c +++ b/libavformat/nutdec.c @@ -203,7 +203,8 @@ static int nut_probe(AVProbeData *p) tmp = ffio_read_varlen(bc); \ if (!(check)) { \ av_log(s, AV_LOG_ERROR, "Error " #dst " is (%"PRId64")\n", tmp); \ - return AVERROR_INVALIDDATA; \ + ret = AVERROR_INVALIDDATA; \ + goto fail; \ } \ dst = tmp; \ } while (0) @@ -230,7 +231,7 @@ static int decode_main_header(NUTContext *nut) AVIOContext *bc = s->pb; uint64_t tmp, end; unsigned int stream_count; - int i, j, count; + int i, j, count, ret; int tmp_stream, tmp_mul, tmp_pts, tmp_size, tmp_res, tmp_head_idx; end = get_packetheader(nut, bc, 1, MAIN_STARTCODE); @@ -264,7 +265,8 @@ static int decode_main_header(NUTContext *nut) GET_V(nut->time_base[i].den, tmp > 0 && tmp < (1ULL << 31)); if (av_gcd(nut->time_base[i].num, nut->time_base[i].den) != 1) { av_log(s, AV_LOG_ERROR, "time base invalid\n"); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } } tmp_pts = 0; @@ -301,18 +303,21 @@ static int decode_main_header(NUTContext *nut) while (tmp_fields-- > 8) { if (bc->eof_reached) { av_log(s, AV_LOG_ERROR, "reached EOF while decoding main header\n"); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } ffio_read_varlen(bc); } if (count <= 0 || count > 256 - (i <= 'N') - i) { av_log(s, AV_LOG_ERROR, "illegal count %d at %d\n", count, i); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } if (tmp_stream >= stream_count) { av_log(s, AV_LOG_ERROR, "illegal stream number\n"); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } for (j = 0; j < count; j++, i++) { @@ -342,11 +347,14 @@ static int decode_main_header(NUTContext *nut) rem -= nut->header_len[i]; if (rem < 0) { av_log(s, AV_LOG_ERROR, "invalid elision header\n"); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } hdr = av_malloc(nut->header_len[i]); - if (!hdr) - return AVERROR(ENOMEM); + if (!hdr) { + ret = AVERROR(ENOMEM); + goto fail; + } avio_read(bc, hdr, nut->header_len[i]); nut->header[i] = hdr; } @@ -360,16 +368,26 @@ static int decode_main_header(NUTContext *nut) if (skip_reserved(bc, end) || ffio_get_checksum(bc)) { av_log(s, AV_LOG_ERROR, "main header checksum mismatch\n"); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } nut->stream = av_calloc(stream_count, sizeof(StreamContext)); - if (!nut->stream) - return AVERROR(ENOMEM); + if (!nut->stream) { + ret = AVERROR(ENOMEM); + goto fail; + } for (i = 0; i < stream_count; i++) avformat_new_stream(s, NULL); return 0; +fail: + av_freep(&nut->time_base); + for (i = 1; i < nut->header_count; i++) { + av_freep(&nut->header[i]); + } + nut->header_count = 0; + return ret; } static int decode_stream_header(NUTContext *nut) @@ -377,9 +395,9 @@ static int decode_stream_header(NUTContext *nut) AVFormatContext *s = nut->avf; AVIOContext *bc = s->pb; StreamContext *stc; - int class, stream_id; + int class, stream_id, ret; uint64_t tmp, end; - AVStream *st; + AVStream *st = NULL; end = get_packetheader(nut, bc, 1, STREAM_STARTCODE); end += avio_tell(bc); @@ -452,7 +470,8 @@ static int decode_stream_header(NUTContext *nut) if ((!st->sample_aspect_ratio.num) != (!st->sample_aspect_ratio.den)) { av_log(s, AV_LOG_ERROR, "invalid aspect ratio %d/%d\n", st->sample_aspect_ratio.num, st->sample_aspect_ratio.den); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } ffio_read_varlen(bc); /* csp type */ } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { @@ -463,12 +482,19 @@ static int decode_stream_header(NUTContext *nut) if (skip_reserved(bc, end) || ffio_get_checksum(bc)) { av_log(s, AV_LOG_ERROR, "stream header %d checksum mismatch\n", stream_id); - return AVERROR_INVALIDDATA; + ret = AVERROR_INVALIDDATA; + goto fail; } stc->time_base = &nut->time_base[stc->time_base_id]; avpriv_set_pts_info(s->streams[stream_id], 63, stc->time_base->num, stc->time_base->den); return 0; +fail: + if (st && st->codec) { + av_freep(&st->codec->extradata); + st->codec->extradata_size = 0; + } + return ret; } static void set_disposition_bits(AVFormatContext *avf, char *value, @@ -492,7 +518,7 @@ 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, ret; + int chapter_id, i, ret = 0; int64_t value, end; char name[256], str_value[1024], type_str[256]; const char *type; @@ -603,7 +629,8 @@ static int decode_info_header(NUTContext *nut) av_log(s, AV_LOG_ERROR, "info header checksum mismatch\n"); return AVERROR_INVALIDDATA; } - return 0; +fail: + return FFMIN(ret, 0); } static int decode_syncpoint(NUTContext *nut, int64_t *ts, int64_t *back_ptr) @@ -669,9 +696,9 @@ static int find_and_decode_index(NUTContext *nut) uint64_t tmp, end; int i, j, syncpoint_count; int64_t filesize = avio_size(bc); - int64_t *syncpoints; + int64_t *syncpoints = NULL; uint64_t max_pts; - int8_t *has_keyframe; + int8_t *has_keyframe = NULL; int ret = AVERROR_INVALIDDATA; if(filesize <= 0) @@ -987,7 +1014,7 @@ static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id, AVFormatContext *s = nut->avf; AVIOContext *bc = s->pb; StreamContext *stc; - int size, flags, size_mul, pts_delta, i, reserved_count; + int size, flags, size_mul, pts_delta, i, reserved_count, ret; uint64_t tmp; if (!(nut->flags & NUT_PIPE) && @@ -1060,6 +1087,8 @@ static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id, stc->last_flags = flags; return size; +fail: + return ret; } static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code) @@ -1098,10 +1127,14 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code) pkt->pos = avio_tell(bc); // FIXME if (stc->last_flags & FLAG_SM_DATA) { int sm_size; - if (read_sm_data(s, bc, pkt, 0, pkt->pos + size) < 0) - return AVERROR_INVALIDDATA; - if (read_sm_data(s, bc, pkt, 1, pkt->pos + size) < 0) - return AVERROR_INVALIDDATA; + if (read_sm_data(s, bc, pkt, 0, pkt->pos + size) < 0) { + ret = AVERROR_INVALIDDATA; + goto fail; + } + if (read_sm_data(s, bc, pkt, 1, pkt->pos + size) < 0) { + ret = AVERROR_INVALIDDATA; + goto fail; + } sm_size = avio_tell(bc) - pkt->pos; size -= sm_size; pkt->size -= sm_size; @@ -1110,7 +1143,7 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code) ret = avio_read(bc, pkt->data + nut->header_len[header_idx], size); if (ret != size) { if (ret < 0) - return ret; + goto fail; } av_shrink_packet(pkt, nut->header_len[header_idx] + ret); @@ -1120,6 +1153,9 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code) pkt->pts = pts; return 0; +fail: + av_free_packet(pkt); + return ret; } static int nut_read_packet(AVFormatContext *s, AVPacket *pkt) |