From 7a089ed8e049e3bfcb22de1250b86f2106060857 Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Tue, 12 Mar 2024 23:23:17 +0100 Subject: [PATCH] avformat/avidec: Fix integer overflow iff ULONG_MAX < INT64_MAX Affects many FATE-tests, see https://fate.ffmpeg.org/report.cgi?time=20240312011016&slot=ppc-linux-gcc-13.2-ubsan-altivec-qemu Reviewed-by: James Almer Signed-off-by: Andreas Rheinhardt --- libavformat/avidec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/avidec.c b/libavformat/avidec.c index f3183b2698..985a9bf022 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -1696,7 +1696,7 @@ static int check_stream_max_drift(AVFormatContext *s) int *idx = av_calloc(s->nb_streams, sizeof(*idx)); if (!idx) return AVERROR(ENOMEM); - for (min_pos = pos = 0; min_pos != INT64_MAX; pos = min_pos + 1LU) { + for (min_pos = pos = 0; min_pos != INT64_MAX; pos = min_pos + 1ULL) { int64_t max_dts = INT64_MIN / 2; int64_t min_dts = INT64_MAX / 2; int64_t max_buffer = 0;