[Dle-develop] patch perf-probe-fix-probe_point-buffer-overrun.patch added to 2.6.33-stable tree

[<gr...@su...>]

This is a note to let you know that we have just queued up the patch titled

    Subject: perf probe: Fix probe_point buffer overrun

to the 2.6.33-stable tree.  Its filename is

    perf-probe-fix-probe_point-buffer-overrun.patch

A git repo of this tree can be found at 
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary


>From 594087a04eea544356f9c52e83c1a9bc380ce80f Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhi...@re...>
Date: Fri, 12 Mar 2010 18:22:17 -0500
Subject: perf probe: Fix probe_point buffer overrun

From: Masami Hiramatsu <mhi...@re...>

commit 594087a04eea544356f9c52e83c1a9bc380ce80f upstream.

Fix probe_point array-size overrun problem. In some cases (e.g.
inline function), one user-specified probe-point can be
translated to many probe address, and it overruns pre-defined
array-size. This also removes redundant MAX_PROBES macro
definition.

Signed-off-by: Masami Hiramatsu <mhi...@re...>
Cc: systemtap <sys...@so...>
Cc: DLE <dle...@li...>
LKML-Reference: <20100312232217.2017.45017.stgit@localhost6.localdomain6>
[ Note that only root can create new probes. Eventually we should remove
  the MAX_PROBES limit, but that is a larger patch not eligible to
  perf/urgent treatment. ]
Signed-off-by: Ingo Molnar <mi...@el...>
Signed-off-by: Greg Kroah-Hartman <gr...@su...>

---
 tools/perf/builtin-probe.c     |    1 -
 tools/perf/util/probe-finder.c |    3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -48,7 +48,6 @@
 #include "util/probe-event.h"
 
 #define MAX_PATH_LEN 256
-#define MAX_PROBES 128
 
 /* Session management structure */
 static struct {
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -544,6 +544,9 @@ static void show_probepoint(Dwarf_Die sp
 	}
 	free_current_frame_base(pf);
 
+	if (pp->found == MAX_PROBES)
+		die("Too many( > %d) probe point found.\n", MAX_PROBES);
+
 	pp->probes[pp->found] = strdup(tmp);
 	pp->found++;
 }


Patches currently in stable-queue which might be from mhi...@re... are