From d51a920556cffe6e165b83fcc56d96be9c80e7be Mon Sep 17 00:00:00 2001
From: Peter Ross <pross@xvid.org>
Date: Wed, 6 Nov 2024 07:57:17 +1100
Subject: [PATCH] avcodec/rv60: negative qp guard

Fixes CID 1634472
---
 libavcodec/rv60dec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c
index d0cc10253b..d68fa66fa7 100644
--- a/libavcodec/rv60dec.c
+++ b/libavcodec/rv60dec.c
@@ -2270,6 +2270,8 @@ static int decode_slice(AVCodecContext *avctx, void *tdata, int cu_y, int thread
             ff_thread_progress_await(&s->progress[cu_y - 1], cu_x + 2);
 
         qp = s->qp + read_qp_offset(&gb, s->qp_off_type);
+        if (qp < 0)
+            return AVERROR_INVALIDDATA;
         sel_qp = calc_sel_qp(s->osvquant, qp);
 
         memset(thread.coded_blk, 0, sizeof(thread.coded_blk));