From 37f05d29b6ed06d855505f64429274dbe618bb15 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 11 Jul 2024 19:29:14 +0200 Subject: [PATCH] avformat/mm: Check length Fixes: CID1220824 Overflowed constant Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer (cherry picked from commit 139bf412464e62a83984cd49093936dcaa7a0865) Signed-off-by: Michael Niedermayer --- libavformat/mm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mm.c b/libavformat/mm.c index 02ffbcd824..097c3efc1c 100644 --- a/libavformat/mm.c +++ b/libavformat/mm.c @@ -94,7 +94,7 @@ static int read_header(AVFormatContext *s) type = avio_rl16(pb); length = avio_rl32(pb); - if (type != MM_TYPE_HEADER) + if (type != MM_TYPE_HEADER || length < 10) return AVERROR_INVALIDDATA; /* read header */