From: Vsevolod Stakhov <vsevolod@rspamd.com>
Date: Sun, 5 Oct 2025 16:06:57 +0000 (+0100)
Subject: [Fix] Fix HTML fuzzy cache key to prevent overwriting text cache
X-Git-Tag: 3.14.0~87^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=abf179fdbf23cfd5dd1734501fdc3580c491208b;p=thirdparty%2Frspamd.git

[Fix] Fix HTML fuzzy cache key to prevent overwriting text cache

HTML fuzzy hashes were incorrectly cached using the standard text fuzzy
cache key via fuzzy_cmd_set_cached(), causing HTML hashes to overwrite
text hashes for the same part. Now HTML fuzzy uses the dedicated
html_cache_key for both read and write operations, preventing cache
conflicts and ensuring proper retrieval of HTML fuzzy data.
---

diff --git a/src/plugins/fuzzy_check.c b/src/plugins/fuzzy_check.c
index 395fc2512a..5139783e56 100644
--- a/src/plugins/fuzzy_check.c
+++ b/src/plugins/fuzzy_check.c
@@ -2364,7 +2364,13 @@ fuzzy_cmd_from_html_part(struct rspamd_task *task,
 			return NULL;
 		}
 
-		fuzzy_cmd_set_cached(rule, task, mp, cached);
+		/* Save to HTML-specific cache (not standard text cache) */
+		if (!html_cached_ptr) {
+			html_cached_ptr = rspamd_mempool_alloc0(task->task_pool, sizeof(*html_cached_ptr) *
+																		 (MESSAGE_FIELD(task, parts)->len + 1));
+			rspamd_mempool_set_variable(task->task_pool, html_cache_key, html_cached_ptr, NULL);
+		}
+		html_cached_ptr[mp->part_number] = cached;
 	}
 
 	io = rspamd_mempool_alloc(task->task_pool, sizeof(*io));