From: Maria Matejka <mq@ucw.cz>
Date: Thu, 13 Feb 2025 09:22:08 +0000 (+0100)
Subject: Taming static checker: Fixed hypothetical adata comparator crash
X-Git-Tag: v3.1.0~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=15bd7100cb6024478ffe98961f02c3a428f83e15;p=thirdparty%2Fbird.git

Taming static checker: Fixed hypothetical adata comparator crash
---

diff --git a/lib/attrs.h b/lib/attrs.h
index ae9de9c64..b57348d5a 100644
--- a/lib/attrs.h
+++ b/lib/attrs.h
@@ -43,7 +43,7 @@ lp_store_adata(struct linpool *pool, const void *buf, uint len)
 #define tmp_copy_adata(ad)	  tmp_store_adata((ad)->data, (ad)->length)
 
 static inline int adata_same(const struct adata *a, const struct adata *b)
-{ return (!a && !b) || (a->length == b->length && !memcmp(a->data, b->data, a->length)); }
+{ return (!a && !b) || a && b && (a->length == b->length && !memcmp(a->data, b->data, a->length)); }