From 5af1fe569360655b86220e808b3f950c007527df Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 7 Jun 2024 21:57:40 +0200 Subject: [PATCH] avformat/rmdec: use 64bit for audio_framesize checks It is not entirely clear what would prevent such overflow so even if it is not possible, it is better to use 64bit Fixes: CID1491898 Unintentional integer overflow Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer (cherry picked from commit 665be4fa2f47910bf85a6f17b6cac9dabc6591f0) Signed-off-by: Michael Niedermayer --- libavformat/rmdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index 0f1534b582..e156f57bd8 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -267,9 +267,9 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb, case DEINT_ID_INT4: if (ast->coded_framesize > ast->audio_framesize || sub_packet_h <= 1 || - ast->coded_framesize * (uint64_t)sub_packet_h > (2 + (sub_packet_h & 1)) * ast->audio_framesize) + ast->coded_framesize * (uint64_t)sub_packet_h > (2LL + (sub_packet_h & 1)) * ast->audio_framesize) return AVERROR_INVALIDDATA; - if (ast->coded_framesize * (uint64_t)sub_packet_h != 2*ast->audio_framesize) { + if (ast->coded_framesize * (uint64_t)sub_packet_h != 2LL*ast->audio_framesize) { avpriv_request_sample(s, "mismatching interleaver parameters"); return AVERROR_INVALIDDATA; }