Add refs to patch

OBS-URL: https://build.opensuse.org/package/show/server:mail/rspamd?expand=0&rev=100

fix_stack_smash.patch

@@ -1,3 +1,12 @@
+https://bugzilla.suse.com/show_bug.cgi?id=1216830
+https://github.com/rspamd/rspamd/pull/4732
+
+The caller uses the value to size its memory allocation:
+        gsize niov = rspamd_log_fill_iov(NULL, now, module, id, function, level_flags, message,
+                                                                         mlen, rspamd_log);
+        struct iovec *iov = g_alloca(sizeof(struct iovec) * niov);
+and that faulted on aarch64.
+
 Index: rspamd-3.7.4/src/libserver/logger/logger.c
 ===================================================================
 --- rspamd-3.7.4.orig/src/libserver/logger/logger.c