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[FFmpeg-devel,19/26] avformat/subviewer1dec: Fix memleak upon read header failure

Message ID 20200614223656.21338-19-andreas.rheinhardt@gmail.com
State Accepted
Commit 9751d7515222c7b58d0c6fb31aec6e0464c0f338
Headers show
Series [FFmpeg-devel,01/26] avformat/matroskadec: Move AVBufferRef instead of copying, fix memleak
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Commit Message

Andreas Rheinhardt June 14, 2020, 10:36 p.m. UTC
The already parsed subtitles (contained in an FFDemuxSubtitlesQueue)
would leak if an error happened upon reading a subsequent subtitle.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavformat/subviewer1dec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/libavformat/subviewer1dec.c b/libavformat/subviewer1dec.c
index 1360d9b7d9..f2eee294a1 100644
--- a/libavformat/subviewer1dec.c
+++ b/libavformat/subviewer1dec.c
@@ -77,8 +77,10 @@  static int subviewer1_read_header(AVFormatContext *s)
                     sub->duration = pts_start - sub->pts;
             } else {
                 sub = ff_subtitles_queue_insert(&subviewer1->q, line, len, 0);
-                if (!sub)
+                if (!sub) {
+                    ff_subtitles_queue_clean(&subviewer1->q);
                     return AVERROR(ENOMEM);
+                }
                 sub->pos = pos;
                 sub->pts = pts_start;
                 sub->duration = -1;