From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 2/6] avformat/avidec: Correct unsigend type
Date: Sat, 30 Sep 2023 01:19:57 +0200
Message-ID: <20230929232001.23197-2-michael@niedermayer.cc> (raw)
In-Reply-To: <20230929232001.23197-1-michael@niedermayer.cc>
Fixes: signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long long'
Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-6706191715139584
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavformat/avidec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index cfc693842b7..95a6cbe930e 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -1704,7 +1704,7 @@ 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 + 1llu) {
int64_t max_dts = INT64_MIN / 2;
int64_t min_dts = INT64_MAX / 2;
int64_t max_buffer = 0;
--
2.17.1
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next prev parent reply other threads:[~2023-09-29 23:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 23:19 [FFmpeg-devel] [PATCH 1/6] avformat/avidec: support huge durations Michael Niedermayer
2023-09-29 23:19 ` Michael Niedermayer [this message]
2023-09-29 23:19 ` [FFmpeg-devel] [PATCH 3/6] vformat/cafdec: dont seek beyond 64bit Michael Niedermayer
2023-09-29 23:19 ` [FFmpeg-devel] [PATCH 4/6] avformat/cafdec: saturate start + size into 64bit Michael Niedermayer
2023-09-29 23:41 ` James Almer
2023-09-30 16:32 ` Michael Niedermayer
2024-03-25 22:54 ` Michael Niedermayer
2023-09-29 23:20 ` [FFmpeg-devel] [PATCH 5/6] avformat/dxa: Adjust order of operations around block align Michael Niedermayer
2023-09-29 23:20 ` [FFmpeg-devel] [PATCH 6/6] avformat/iff: Saturate avio_tell() + 12 Michael Niedermayer
2024-03-25 22:58 ` Michael Niedermayer
2023-09-30 9:35 ` [FFmpeg-devel] [PATCH 1/6] avformat/avidec: support huge durations Marton Balint
2023-09-30 14:04 ` Michael Niedermayer
2023-09-30 14:31 ` Michael Niedermayer
2023-09-30 20:18 ` Anton Khirnov
2023-09-30 22:28 ` Michael Niedermayer
2023-10-02 9:07 ` Anton Khirnov
2023-10-02 19:03 ` Michael Niedermayer
2023-10-03 9:10 ` Tomas Härdin
2023-10-03 18:53 ` Michael Niedermayer
2024-03-25 22:50 ` Michael Niedermayer
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