diff --git a/libavcodec/exr.c b/libavcodec/exr.c
index a62a4c8a6f..329db66149 100644
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@@ -537,7 +537,7 @@ static int huf_decode(const uint64_t *hcode, const HufDec *hdecod,
     while (lc > 0) {
         const HufDec pl = hdecod[(c << (HUF_DECBITS - lc)) & HUF_DECMASK];
 
-        if (pl.len) {
+        if (pl.len && lc >= pl.len) {
             lc -= pl.len;
             get_code(pl.lit, rlc, c, lc, gb, out, oe, outb);
         } else {