From 3e44bd068fc19baeaab3295fce8379c68e4b2b2a Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 16 May 2021 21:18:09 +0200 Subject: [PATCH] avformat/fifo: check for flushed packets and timeshift Fixes: CID1464151 Dereference after null check Reviewed-by: Marton Balint Signed-off-by: Michael Niedermayer --- libavformat/fifo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/fifo.c b/libavformat/fifo.c index 620fffa032..50656f78b7 100644 --- a/libavformat/fifo.c +++ b/libavformat/fifo.c @@ -593,7 +593,7 @@ static int fifo_write_packet(AVFormatContext *avf, AVPacket *pkt) goto fail; } - if (fifo->timeshift && pkt->dts != AV_NOPTS_VALUE) + if (fifo->timeshift && pkt && pkt->dts != AV_NOPTS_VALUE) atomic_fetch_add_explicit(&fifo->queue_duration, next_duration(avf, pkt, &fifo->last_sent_dts), memory_order_relaxed); return ret;