From e51a6a8cac354f4e7a709b17f047f1fc709882d8 Mon Sep 17 00:00:00 2001
From: "Val S." <mx.val@icloud.com>
Date: Thu, 9 Oct 2025 17:40:14 -0400
Subject: [PATCH] Fix ZIP parser issue

The function which indexes a ZIP central directory is not advancing
to the next central directory record thus exceeding the max-files scan
limit for many ZIPs.

CLAM-2884
---
 libclamav/unzip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libclamav/unzip.c b/libclamav/unzip.c
index 90920ec5b..d635522b8 100644
--- a/libclamav/unzip.c
+++ b/libclamav/unzip.c
@@ -2075,6 +2075,9 @@ cl_error_t unzip_search(cli_ctx *ctx, struct zip_requests *requests)
                 status = CL_ETIMEOUT;
                 goto done;
             }
+
+            // Increment to the next central file header.
+            central_file_header_offset += file_record_size;
         } while ((ret == CL_SUCCESS) && (file_record_size > 0));
     } else {
         cli_dbgmsg("unzip_search: Cannot locate central directory. unzip_search failed.\n");