Commit 291f96f792 for ffmpeg

commit 291f96f7929f5837dc900adef3720025516e8584
Author: zhang xingxing <2388969553@qq.com>
Date:   Mon Sep 21 06:14:25 2026 +0200

    avfilter/vf_libopencv: unmap the shape file on column overflow

    Fixes: memleak
    Fixes: ZbzgLVrnEIkH
    Fixes: swarm-File-mapping-leak-on-column-overflow-early-return-06d09a

diff --git a/libavfilter/vf_libopencv.c b/libavfilter/vf_libopencv.c
index 5552fab1b8..b8366a00c7 100644
--- a/libavfilter/vf_libopencv.c
+++ b/libavfilter/vf_libopencv.c
@@ -150,7 +150,8 @@ static int read_shape_from_file(int *cols, int *rows, int **values, const char *
             w = 0;
         } else if (w == INT_MAX) {
             av_log(log_ctx, AV_LOG_ERROR, "Overflow on the number of columns in the file\n");
-            return AVERROR_INVALIDDATA;
+            ret = AVERROR_INVALIDDATA;
+            goto end;
         }
         w++;
     }