From 15e1093f9a523995549bac162faff528c9910502 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 9 Apr 2023 16:01:35 +0200 Subject: [PATCH] avformat/rka: bps < 8 is invalid Fixes: division by zero Fixes: 57828/clusterfuzz-testcase-minimized-ffmpeg_dem_RKA_fuzzer-6571818338353152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit 167b4f56f187edafd94fa2e706897ac3bb450511) Signed-off-by: Michael Niedermayer --- libavformat/rka.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/rka.c b/libavformat/rka.c index 39e5b3bce1..36e25ade01 100644 --- a/libavformat/rka.c +++ b/libavformat/rka.c @@ -72,7 +72,7 @@ static int rka_read_header(AVFormatContext *s) if (channels == 0) return AVERROR_INVALIDDATA; bps = par->extradata[13]; - if (bps == 0) + if (bps < 8) return AVERROR_INVALIDDATA; size_offset = avio_rl32(s->pb); framepos = avio_tell(s->pb);