From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id DE03C442C5 for ; Sat, 5 Nov 2022 20:16:40 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id AA8E168B192; Sat, 5 Nov 2022 22:16:37 +0200 (EET) Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id C982C68B0A6 for ; Sat, 5 Nov 2022 22:16:31 +0200 (EET) Received: (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id EDA0420009 for ; Sat, 5 Nov 2022 20:16:30 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 5 Nov 2022 21:16:26 +0100 Message-Id: <20221105201629.1980-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH 1/4] avcodec/dts2pts_bsf: Check ctx for NULL before ff_cbs_flush() X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: Fixes: null pointer dereference Fixes: 52155/clusterfuzz-testcase-minimized-ffmpeg_BSF_DTS2PTS_fuzzer-5760107527143424 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/dts2pts_bsf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/dts2pts_bsf.c b/libavcodec/dts2pts_bsf.c index bf20b1ec8a..8142562d2c 100644 --- a/libavcodec/dts2pts_bsf.c +++ b/libavcodec/dts2pts_bsf.c @@ -505,7 +505,8 @@ static void dts2pts_flush(AVBSFContext *ctx) s->root = NULL; ff_cbs_fragment_reset(&s->au); - ff_cbs_flush(s->cbc); + if (s->cbc) + ff_cbs_flush(s->cbc); } static void dts2pts_close(AVBSFContext *ctx) -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".