[FFmpeg-devel] [PATCH 2/5] avutil/hwcontext: Don't assume frames_uninit is reentrant

[Zhao Zhili <quinkblack@foxmail.com>]

From: Zhao Zhili <zhilizhao@tencent.com>

Fix heap use after free when vulkan_frames_init failed.
---
 libavutil/hwcontext.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
index e8c6256a73..dec8b84783 100644
--- a/libavutil/hwcontext.c
+++ b/libavutil/hwcontext.c
@@ -360,7 +360,7 @@ int av_hwframe_ctx_init(AVBufferRef *ref)
     if (ctx->internal->hw_type->frames_init) {
         ret = ctx->internal->hw_type->frames_init(ctx);
         if (ret < 0)
-            goto fail;
+            return ret;
     }
 
     if (ctx->internal->pool_internal && !ctx->pool)
@@ -370,14 +370,10 @@ int av_hwframe_ctx_init(AVBufferRef *ref)
     if (ctx->initial_pool_size > 0) {
         ret = hwframe_pool_prealloc(ref);
         if (ret < 0)
-            goto fail;
+            return ret;
     }
 
     return 0;
-fail:
-    if (ctx->internal->hw_type->frames_uninit)
-        ctx->internal->hw_type->frames_uninit(ctx);
-    return ret;
 }
 
 int av_hwframe_transfer_get_formats(AVBufferRef *hwframe_ref,
-- 
2.34.1

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