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avcodec/omx: Check extradata size and nFilledLen

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No testcase, its unknown if this is a real issue

Reported-by: Peter Teoh <htmldeveloper@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-11-12 03:05:15 +01:00
committed by michaelni
parent 09ec2b397a
commit fc8a614f3d
1 changed files with 5 additions and 0 deletions
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5
libavcodec/omx.c
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@@ -688,6 +688,11 @@ static av_cold int omx_encode_init(AVCodecContext *avctx)
buffer = get_buffer(&s->output_mutex, &s->output_cond,
&s->num_done_out_buffers, s->done_out_buffers, 1);
if (buffer->nFlags & OMX_BUFFERFLAG_CODECCONFIG) {
if (buffer->nFilledLen > INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE - avctx->extradata_size) {
ret = AVERROR(ENOMEM);
goto fail;
}
if ((ret = av_reallocp(&avctx->extradata, avctx->extradata_size + buffer->nFilledLen + AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
avctx->extradata_size = 0;
goto fail;