From e57fd926b09156fd8da42876e8946490025c47d4 Mon Sep 17 00:00:00 2001 From: Marton Balint Date: Sun, 5 Feb 2017 02:25:04 +0100 Subject: [PATCH] avfilter/af_pan: fix null pointer dereference on empty token Fixes Coverity CID 1396254. Signed-off-by: Marton Balint --- libavfilter/af_pan.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavfilter/af_pan.c b/libavfilter/af_pan.c index 94f15876f5..a477bde460 100644 --- a/libavfilter/af_pan.c +++ b/libavfilter/af_pan.c @@ -115,6 +115,11 @@ static av_cold int init(AVFilterContext *ctx) if (!args) return AVERROR(ENOMEM); arg = av_strtok(args, "|", &tokenizer); + if (!arg) { + av_log(ctx, AV_LOG_ERROR, "Channel layout not specified\n"); + ret = AVERROR(EINVAL); + goto fail; + } ret = ff_parse_channel_layout(&pan->out_channel_layout, &pan->nb_output_channels, arg, ctx); if (ret < 0)