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| author | James Almer <jamrial@gmail.com> | 2021-11-01 18:57:56 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2021-11-04 22:59:55 -0300 |
| commit | f6ab103bb5c2dd494620f7a28ae232efe497a4d1 (patch) | |
| tree | 9dd2329c9a5d3ec0a7d254d6b862f52a0aea5ac1 | |
| parent | d2379bd6a03bc57eb9cc027a75f21086474422fe (diff) | |
| download | ffmpeg-f6ab103bb5c2dd494620f7a28ae232efe497a4d1.tar.gz | |
avcodec/libx264: fix sei payload leaks on error
Signed-off-by: James Almer <jamrial@gmail.com>
| -rw-r--r-- | libavcodec/libx264.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c index 21f434d06d..0766b4a950 100644 --- a/libavcodec/libx264.c +++ b/libavcodec/libx264.c @@ -293,6 +293,18 @@ static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame) } } +static void free_picture(AVCodecContext *ctx) +{ + X264Context *x4 = ctx->priv_data; + x264_picture_t *pic = &x4->pic; + + for (int i = 0; i < pic->extra_sei.num_payloads; i++) + av_free(pic->extra_sei.payloads[i].payload); + av_freep(&pic->extra_sei.payloads); + av_freep(&pic->prop.quant_offsets); + pic->extra_sei.num_payloads = 0; +} + static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet) { @@ -396,15 +408,17 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, roi = (const AVRegionOfInterest*)sd->data; roi_size = roi->self_size; if (!roi_size || sd->size % roi_size != 0) { + free_picture(ctx); av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n"); return AVERROR(EINVAL); } nb_rois = sd->size / roi_size; qoffsets = av_calloc(mbx * mby, sizeof(*qoffsets)); - if (!qoffsets) + if (!qoffsets) { + free_picture(ctx); return AVERROR(ENOMEM); - + } // This list must be iterated in reverse because the first // region in the list applies when regions overlap. for (int i = nb_rois - 1; i >= 0; i--) { @@ -420,6 +434,7 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, if (roi->qoffset.den == 0) { av_free(qoffsets); + free_picture(ctx); av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n"); return AVERROR(EINVAL); } @@ -452,7 +467,7 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, continue; tmp = av_fast_realloc(sei->payloads, &sei_data_size, (sei->num_payloads + 1) * sizeof(*sei_payload)); if (!tmp) { - av_freep(&x4->pic.prop.quant_offsets); + free_picture(ctx); return AVERROR(ENOMEM); } sei->payloads = tmp; @@ -460,7 +475,7 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, sei_payload = &sei->payloads[sei->num_payloads]; sei_payload->payload = av_memdup(side_data->data, side_data->size); if (!sei_payload->payload) { - av_freep(&x4->pic.prop.quant_offsets); + free_picture(ctx); return AVERROR(ENOMEM); } sei_payload->payload_size = side_data->size; |