From: Steven Liu <lq@chinaffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Steven Liu <lq@chinaffmpeg.org>, TOTE Robot <oslab@tsinghua.edu.cn>
Subject: [FFmpeg-devel] [PATCH] avcodec/vp6: Check alpha_context for allocation failures
Date: Fri, 11 Feb 2022 20:51:55 +0800
Message-ID: <20220211125155.11643-1-lq@chinaffmpeg.org> (raw)
Fixes: null pointer dereference
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
---
libavcodec/vp6.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/vp6.c b/libavcodec/vp6.c
index d024370793..7ddabbff80 100644
--- a/libavcodec/vp6.c
+++ b/libavcodec/vp6.c
@@ -653,6 +653,8 @@ static av_cold int vp6_decode_init(AVCodecContext *avctx)
if (s->has_alpha) {
s->alpha_context = av_mallocz(sizeof(VP56Context));
+ if (!s->alpha_context)
+ return AVERROR(ENOMEM);
ff_vp56_init_context(avctx, s->alpha_context,
s->flip == -1, s->has_alpha);
ff_vp6dsp_init(&s->alpha_context->vp56dsp);
--
2.25.0
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next reply other threads:[~2022-02-11 12:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-11 12:51 Steven Liu [this message]
2022-02-11 12:55 ` Andreas Rheinhardt
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