From 676f7ceef6a09924ba4ef5fd41b1628002a6fbee Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 30 Sep 2023 23:55:20 +0200 Subject: [PATCH] avformat/xwma: sanity check bits_per_coded_sample Fixes: signed integer overflow: 65312 * 524296 cannot be represented in type 'int' Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_XWMA_fuzzer-6595971445555200 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit fe6ce28d118d6030984e1ee5c2d92e98514fe3d1) Signed-off-by: Michael Niedermayer --- libavformat/xwma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/xwma.c b/libavformat/xwma.c index e37c16b6df..2a5f38dfcd 100644 --- a/libavformat/xwma.c +++ b/libavformat/xwma.c @@ -151,7 +151,7 @@ static int xwma_read_header(AVFormatContext *s) st->codecpar->channels); return AVERROR_INVALIDDATA; } - if (!st->codecpar->bits_per_coded_sample) { + if (!st->codecpar->bits_per_coded_sample || st->codecpar->bits_per_coded_sample > 64) { av_log(s, AV_LOG_WARNING, "Invalid bits_per_coded_sample: %d\n", st->codecpar->bits_per_coded_sample); return AVERROR_INVALIDDATA;