Update CHANGELOG.md entry

Author: Glenn Song

release_docs/CHANGELOG.md

@@ -496,7 +496,7 @@ Simple example programs showing how to use complex number datatypes have been ad
 ## Library
 
 ### Fixed security issue CVE-2025-2925
-   H5C__load_entry() now checks for an image buffer length of 0 before calling realloc. A bug was occurring due to actual_len + H5C_IMAGE_EXTRA_SPACE being able to be 0 due to bad inputs. When realloc was called, it freed image, but got sent to done before new_image could be assigned to image. Because the pointer for image wasn't null, it is freed again in done, causing a double free bug.
+   Actual_len + H5C_IMAGE_EXTRA_SPACE, which was used by H5MM_realloc as the size input, could equal 0 due to bad inputs. When H5MM_realloc was called, it freed image, but then could get sent to done before new_image could be assigned to image. Because the pointer for image wasn't null, it was freed again in done, causing a double-free vulnerability. H5C__load_entry() now checks for an image buffer length of 0 before calling H5MM_realloc.
 
    Fixes issue Github issue #5383