From b59152b4746e576c9deede398ba0f8e05f5b27c9 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 20 Feb 2023 20:00:44 +0100 Subject: avcodec/rka: check for size 1 filter Such filters will not advance and be stuck in the current implementation Fixes: Infinite loop Fixes: 56052/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RKA_fuzzer-5236218750435328 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit 8874cfa2e174cf1a94123fc2f1a3aa4d307a270f) Signed-off-by: Michael Niedermayer --- libavcodec/rka.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/rka.c b/libavcodec/rka.c index 994c563ffd..7452acf27f 100644 --- a/libavcodec/rka.c +++ b/libavcodec/rka.c @@ -691,7 +691,7 @@ static int decode_filter(RKAContext *s, ChContext *ctx, ACoder *ac, int off, uns else split = size >> 4; - if (size <= 0) + if (size <= 1) return 0; for (int x = 0; x < size;) { -- cgit v1.2.3