From: Florian Weimer <fweimer@redhat.com>
Date: Tue, 22 Aug 2023 11:56:25 +0000 (+0200)
Subject: elf: Do not run constructors for proxy objects
X-Git-Tag: glibc-2.39~487
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f6c8204fd7fabf0cf4162eaf10ccf23258e4d10e;p=thirdparty%2Fglibc.git

elf: Do not run constructors for proxy objects

Otherwise, the ld.so constructor runs for each audit namespace
and each dlmopen namespace.
---

diff --git a/elf/dl-init.c b/elf/dl-init.c
index 5b0732590fa..ba4d2fdc859 100644
--- a/elf/dl-init.c
+++ b/elf/dl-init.c
@@ -25,10 +25,14 @@
 static void
 call_init (struct link_map *l, int argc, char **argv, char **env)
 {
+  /* Do not run constructors for proxy objects.  */
+  if (l != l->l_real)
+    return;
+
   /* If the object has not been relocated, this is a bug.  The
      function pointers are invalid in this case.  (Executables do not
-     need relocation, and neither do proxy objects.)  */
-  assert (l->l_real->l_relocated || l->l_real->l_type == lt_executable);
+     need relocation.)  */
+  assert (l->l_relocated || l->l_type == lt_executable);
 
   if (l->l_init_called)
     /* This object is all done.  */