From 50f0f8c53c818f73fe2d752708e2fa9d2a2d8a07 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 23 Dec 2023 04:03:01 +0100 Subject: [PATCH] avfilter/af_stereowiden: Check length References: https://bugzilla.opensuse.org/1223437 References: CVE-2023-51794 Fixes: out of array access Fixes: tickets/10746/poc13ffmpeg Found-by: Zeng Yunxiang Signed-off-by: Michael Niedermayer --- libavfilter/af_stereowiden.c | 2 ++ 1 file changed, 2 insertions(+) Index: ffmpeg-4.4.4/libavfilter/af_stereowiden.c =================================================================== --- ffmpeg-4.4.4.orig/libavfilter/af_stereowiden.c +++ ffmpeg-4.4.4/libavfilter/af_stereowiden.c @@ -75,6 +75,8 @@ static int config_input(AVFilterLink *in s->length = s->delay * inlink->sample_rate / 1000; s->length *= 2; + if (s->length == 0) + return AVERROR(EINVAL); s->buffer = av_calloc(s->length, sizeof(*s->buffer)); if (!s->buffer) return AVERROR(ENOMEM);