[FFmpeg-devel] [PATCH 1/6] avformat/oggdec: Check ffio_ensure_seekback()

From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 1/6] avformat/oggdec: Check ffio_ensure_seekback()
Date: Wed, 22 May 2024 07:07:05 +0200
Message-ID: <GV1P250MB0737573F097D7A823FE23B2A8FEB2@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM> (raw)

Fixes Coverity issue #1492327.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavformat/oggdec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/oggdec.c b/libavformat/oggdec.c
index 8ea81e5d45..5339fdd32c 100644
--- a/libavformat/oggdec.c
+++ b/libavformat/oggdec.c
@@ -364,7 +364,9 @@ static int ogg_read_page(AVFormatContext *s, int *sid, int probing)
     ffio_init_checksum(bc, ff_crc04C11DB7_update, 0x4fa9b05f);
 
     /* To rewind if checksum is bad/check magic on switches - this is the max packet size */
-    ffio_ensure_seekback(bc, MAX_PAGE_SIZE);
+    ret = ffio_ensure_seekback(bc, MAX_PAGE_SIZE);
+    if (ret < 0)
+        return ret;
     start_pos = avio_tell(bc);
 
     version = avio_r8(bc);
-- 
2.40.1

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