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ld.so.8: srcfix: Add FIXME: Document LD_POINTER_GUARD 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2008-10-27 22:00:29 -05:00
parent bd6de82f03
commit 059e3255a1
1 changed files with 12 additions and 0 deletions
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12
man8/ld.so.8
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@ -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)