forked from jengelh/ffmpeg-4
Jan Engelhardt
e66e889503
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-4?expand=0&rev=210
47 lines
1.4 KiB
Diff
47 lines
1.4 KiB
Diff
From 3bb00c0a420c3ce83c6fafee30270d69622ccad7 Mon Sep 17 00:00:00 2001
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From: Zhao Zhili <zhilizhao@tencent.com>
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Date: Tue, 20 Feb 2024 20:08:55 +0800
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Subject: [PATCH] avutil/hwcontext: Don't assume frames_uninit is reentrant
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References: https://bugzilla.opensuse.org/1223070
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References: CVE-2024-31578
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Fix heap use after free when vulkan_frames_init failed.
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Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
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---
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libavutil/hwcontext.c | 8 ++------
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1 file changed, 2 insertions(+), 6 deletions(-)
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diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
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index 1d2c2d7920..aa1329bf2b 100644
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--- a/libavutil/hwcontext.c
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+++ b/libavutil/hwcontext.c
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@@ -359,7 +359,7 @@ int av_hwframe_ctx_init(AVBufferRef *ref)
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if (ctx->internal->hw_type->frames_init) {
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ret = ctx->internal->hw_type->frames_init(ctx);
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if (ret < 0)
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- goto fail;
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+ return ret;
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}
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if (ctx->internal->pool_internal && !ctx->pool)
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@@ -369,14 +369,10 @@ int av_hwframe_ctx_init(AVBufferRef *ref)
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if (ctx->initial_pool_size > 0) {
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ret = hwframe_pool_prealloc(ref);
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if (ret < 0)
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- goto fail;
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+ return ret;
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}
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return 0;
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-fail:
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- if (ctx->internal->hw_type->frames_uninit)
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- ctx->internal->hw_type->frames_uninit(ctx);
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- return ret;
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}
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int av_hwframe_transfer_get_formats(AVBufferRef *hwframe_ref,
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--
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2.44.0
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