From b8593a2bd856478fe5004b2b1e32d8bde4145b3a Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 15 Jun 2024 11:02:57 +0200
Subject: [PATCH] avutil/intmath: fix possible array overread

---
 libavutil/intmath.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/intmath.h b/libavutil/intmath.h
index 52e11a8d5f..856bbbcda2 100644
--- a/libavutil/intmath.h
+++ b/libavutil/intmath.h
@@ -75,7 +75,7 @@ static av_always_inline av_const int ff_log2_16bit_c(unsigned int v)
         v >>= 8;
         n += 8;
     }
-    n += ff_log2_tab[v];
+    n += ff_log2_tab[v & 0xff];
 
     return n;
 }