diff --git a/man8/ld.so.8 b/man8/ld.so.8
index b4eb2576c..e893c33c5 100644
--- a/man8/ld.so.8
+++ b/man8/ld.so.8
@@ -240,6 +240,18 @@ For security reasons, since glibc 2.4,
 is ignored for set-user-ID/set-group-ID binaries.
 .\" Only used if $ORIGIN can't be determined by normal means
 .\" (from the origin path saved at load time, or from /proc/self/exe)?
+.\" 
+.\" FIXME
+.\" Document LD_POINTER_GUARD
+.\" Since glibc 2.4
+.\" Set to 0 to disable pointer guarding
+.\" Any other value enables pointer guarding, which is also the default.
+.\" Pointer guarding is a security mechanism(?) to minimize the
+.\" the risk of having usable pointer in the event of a buffer overrun
+.\" or stack smashing attack(?).
+.\" http://article.gmane.org/gmane.comp.gdb.patches/41147/match=ld_pointer_guard
+.\" http://sourceware.org/ml/gdb-patches/2008-04/msg00252.html
+.\" http://www.cygwin.com/ml/libc-alpha/2006-01/msg00011.html
 .TP
 .B LD_PROFILE
 (glibc since 2.1)