From d358379349973b79bbabc6525a787c40547e00de Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 4 May 2021 18:34:44 +0200 Subject: [PATCH] avformat/tta: Check for EOF in index reading loop Fixes: OOM Fixes: 33585/clusterfuzz-testcase-minimized-ffmpeg_dem_TTA_fuzzer-4564665830080512 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit b72d657b73b2aa4a2a2f72f613199e6080ad48c0) Signed-off-by: Michael Niedermayer --- libavformat/tta.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/tta.c b/libavformat/tta.c index c50f029d66..82869f5d8e 100644 --- a/libavformat/tta.c +++ b/libavformat/tta.c @@ -119,6 +119,8 @@ static int tta_read_header(AVFormatContext *s) for (i = 0; i < c->totalframes; i++) { uint32_t size = avio_rl32(s->pb); int r; + if (avio_feof(s->pb)) + return AVERROR_INVALIDDATA; if ((r = av_add_index_entry(st, framepos, i * (int64_t)c->frame_size, size, 0, AVINDEX_KEYFRAME)) < 0) return r;