From 9d1b74fd3666b0a24f31a9abd1c7362b4f8275b9 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 13 Feb 2026 17:20:51 +0000
Subject:  zero-prepare unallocated gensetdyn

---
 src/libdatastruct/gensetdyn_ready.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/libdatastruct')

diff --git a/src/libdatastruct/gensetdyn_ready.c b/src/libdatastruct/gensetdyn_ready.c
index d8e7257..24c4cdb 100644
--- a/src/libdatastruct/gensetdyn_ready.c
+++ b/src/libdatastruct/gensetdyn_ready.c
@@ -1,5 +1,7 @@
 /* ISC license. */
 
+#include <string.h>
+
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
 #include <skalibs/gensetdyn.h>
@@ -21,6 +23,7 @@ int gensetdyn_ready (gensetdyn *g, uint32_t n)
     uint32_t j = n - 1 - i + g->storage.len ;
     genalloc_catb(uint32_t, &g->freelist, &j, 1) ;
   }
+  memset(g->storage.s + g->storage.len, 0, g->storage.a - g->storage.len) ;
   g->storage.len = n ;
   return 1 ;
 }
-- 
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