From: Kees Cook <keescook@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
Minchan Kim <minchan@kernel.org>, Joe Perches <joe@perches.com>,
Kautuk Consul <consul.kautuk@gmail.com>,
linux-mm@kvack.org, Brad Spengler <spender@grsecurity.net>
Subject: [PATCH] mm: use %pK for /proc/vmallocinfo
Date: Tue, 2 Oct 2012 16:49:34 -0700 [thread overview]
Message-ID: <20121002234934.GA9194@www.outflux.net> (raw)
In the paranoid case of sysctl kernel.kptr_restrict=2, mask the kernel
virtual addresses in /proc/vmallocinfo too.
Reported-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
mm/vmalloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2bb90b1..9c871db 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2572,7 +2572,7 @@ static int s_show(struct seq_file *m, void *p)
{
struct vm_struct *v = p;
- seq_printf(m, "0x%p-0x%p %7ld",
+ seq_printf(m, "0x%pK-0x%pK %7ld",
v->addr, v->addr + v->size, v->size);
if (v->caller)
--
1.7.9.5
--
Kees Cook
Chrome OS Security
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next reply other threads:[~2012-10-02 23:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-02 23:49 Kees Cook [this message]
2012-10-03 0:43 ` KOSAKI Motohiro
2012-10-03 5:12 ` David Rientjes
2012-10-03 5:15 ` Kees Cook
2012-10-03 5:37 ` David Rientjes
2012-10-03 16:13 ` Kees Cook
2012-10-03 18:02 ` David Rientjes
2012-10-03 18:39 ` Kees Cook
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