diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
index 828cfea3fd..2cf18869e1 100644
--- a/libavcodec/qdrw.c
+++ b/libavcodec/qdrw.c
@@ -55,6 +55,8 @@ static int parse_palette(AVCodecContext *avctx, GetByteContext *gbc,
             bytestream2_skip(gbc, 6);
             continue;
         }
+        if (avctx->pix_fmt != AV_PIX_FMT_PAL8)
+            return AVERROR_INVALIDDATA;
         r = bytestream2_get_byte(gbc);
         bytestream2_skip(gbc, 1);
         g = bytestream2_get_byte(gbc);
@@ -227,7 +229,9 @@ static int decode_frame(AVCodecContext *avctx,
             if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
                 return ret;
 
-            parse_palette(avctx, &gbc, (uint32_t *)p->data[1], colors);
+            ret = parse_palette(avctx, &gbc, (uint32_t *)p->data[1], colors);
+            if (ret < 0)
+                return ret;
             p->palette_has_changed = 1;
 
             /* jump to image data */