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diff --git a/‎src/journal/journal-file.c‎
Lines changed: 3 additions & 0 deletions b/‎src/journal/journal-file.c‎
Lines changed: 3 additions & 0 deletions
diff --git a/‎test/fuzz/fuzz-journal-remote/oss-fuzz-25353‎
45 Bytes b/‎test/fuzz/fuzz-journal-remote/oss-fuzz-25353‎
45 Bytes
@@ -1572,6 +1572,9 @@ static int journal_file_append_field(
         assert(f);
         assert(field && size > 0);
 
+        if (!journal_field_valid(field, size, true))
+                return -EBADMSG;
+
         hash = journal_file_hash_data(f, field, size);
 
         r = journal_file_find_field_object_with_hash(f, field, size, hash, &o, &p);