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From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 1/4] avcodec/vp9_raw_reorder_bsf: Check for existence of data before reading it
Date: Wed, 23 Mar 2022 00:07:09 +0100
Message-ID: <AS1PR01MB95640FD35186A40F062423148F179@AS1PR01MB9564.eurprd01.prod.exchangelabs.com> (raw)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
@michaelni: Please tell me the exact fuzzer issue id.

 libavcodec/vp9_raw_reorder_bsf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/vp9_raw_reorder_bsf.c b/libavcodec/vp9_raw_reorder_bsf.c
index 6562399159..1608360fe1 100644
--- a/libavcodec/vp9_raw_reorder_bsf.c
+++ b/libavcodec/vp9_raw_reorder_bsf.c
@@ -292,6 +292,11 @@ static int vp9_raw_reorder_filter(AVBSFContext *bsf, AVPacket *out)
             return err;
         }
 
+        if (!in->size) {
+            av_packet_free(&in);
+            return AVERROR_INVALIDDATA;
+        }
+
         if ((in->data[in->size - 1] & 0xe0) == 0xc0) {
             av_log(bsf, AV_LOG_ERROR, "Input in superframes is not "
                    "supported.\n");
-- 
2.32.0

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             reply	other threads:[~2022-03-22 23:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-22 23:07 Andreas Rheinhardt [this message]
2022-03-22 23:09 ` [FFmpeg-devel] [PATCH 2/4] avcodec/vp9_superframe_bsf: " Andreas Rheinhardt
2022-03-22 23:09 ` [FFmpeg-devel] [PATCH 3/4] avcodec/vp9_superframe_split_bsf: Discard invalid zero-sized frames Andreas Rheinhardt
2022-03-22 23:09 ` [FFmpeg-devel] [PATCH 4/4] avcodec/vp9_superframe_split_bsf: Don't read inexistent data Andreas Rheinhardt

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