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Code Issues Releases Activity

avcodec/vaapi_encode: Check hwctx

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Fixes: null pointer dereference
Fixes: 70376/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_VAAPI_fuzzer-4733551250046976

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-19 22:29:15 +02:00
parent 2f7aaa33e7
commit 3cd077e282
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GPG Key ID: B18E8928B3948D64
1 changed files with 4 additions and 2 deletions
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6
libavcodec/vaapi_encode.c
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@ -2307,12 +2307,14 @@ av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
ff_refstruct_pool_uninit(&ctx->output_buffer_pool);
if (ctx->va_context != VA_INVALID_ID) {
vaDestroyContext(ctx->hwctx->display, ctx->va_context);
if (ctx->hwctx)
vaDestroyContext(ctx->hwctx->display, ctx->va_context);
ctx->va_context = VA_INVALID_ID;
}
if (ctx->va_config != VA_INVALID_ID) {
vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
if (ctx->hwctx)
vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
ctx->va_config = VA_INVALID_ID;
}