From: deraadt <deraadt@openbsd.org>
Date: Sat, 5 Nov 2022 18:48:31 +0000 (+0000)
Subject: The /var/run/ld.so.hints file is mapped into memory.  It is never replaced,
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=1916ec131827e4d1285a290915dc0b7a8120efd0;p=openbsd

The /var/run/ld.so.hints file is mapped into memory.  It is never replaced,
so the mapping can be immutable.
ok kettenis
---

diff --git a/libexec/ld.so/sod.c b/libexec/ld.so/sod.c
index 6774e9e2340..4987c4fd8fb 100644
--- a/libexec/ld.so/sod.c
+++ b/libexec/ld.so/sod.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sod.c,v 1.36 2022/01/08 06:49:41 guenther Exp $	*/
+/*	$OpenBSD: sod.c,v 1.37 2022/11/05 18:48:31 deraadt Exp $	*/
 
 /*
  * Copyright (c) 1993 Paul Kranenburg
@@ -186,6 +186,8 @@ _dl_maphints(void)
 	if (hheader->hh_version >= LD_HINTS_VERSION_2)
 		_dl_hint_search_path = _dl_split_path(hstrtab + hheader->hh_dirlist);
 
+	_dl_mimmutable(addr, hsize);
+
 	/* close the file descriptor, leaving the hints mapped */
 	_dl_close(hfd);