From: Stephen Wilson <wilsons@start.ca>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Rik van Riel <riel@redhat.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Roland McGrath <roland@redhat.com>,
Matt Mackall <mpm@selenic.com>,
David Rientjes <rientjes@google.com>,
Nick Piggin <npiggin@kernel.dk>,
Andrea Arcangeli <aarcange@redhat.com>,
Mel Gorman <mel@csn.ul.ie>, Ingo Molnar <mingo@elte.hu>,
Michel Lespinasse <walken@google.com>,
Hugh Dickins <hughd@google.com>,
linux-kernel@vger.kernel.org, Stephen Wilson <wilsons@start.ca>
Subject: [PATCH 6/6] proc: enable writing to /proc/pid/mem
Date: Tue, 8 Mar 2011 19:42:23 -0500 [thread overview]
Message-ID: <1299631343-4499-7-git-send-email-wilsons@start.ca> (raw)
In-Reply-To: <1299631343-4499-1-git-send-email-wilsons@start.ca>
With recent changes there is no longer a security hazard with writing to
/proc/pid/mem. Remove the #ifdef.
Signed-off-by: Stephen Wilson <wilsons@start.ca>
---
fs/proc/base.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 5ffc927..41d9c46 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -833,10 +833,6 @@ out_no_task:
return ret;
}
-#define mem_write NULL
-
-#ifndef mem_write
-/* This is a security hazard */
static ssize_t mem_write(struct file * file, const char __user *buf,
size_t count, loff_t *ppos)
{
@@ -894,7 +890,6 @@ out:
out_no_task:
return copied;
}
-#endif
loff_t mem_lseek(struct file *file, loff_t offset, int orig)
{
--
1.7.3.5
--
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next prev parent reply other threads:[~2011-03-09 0:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-09 0:42 [PATCH 0/6] enable writing to /proc/pid/mem Stephen Wilson
2011-03-09 0:42 ` [PATCH 1/6] mm: use mm_struct to resolve gate vma's in __get_user_pages Stephen Wilson
2011-03-09 5:19 ` KOSAKI Motohiro
2011-03-09 6:06 ` Al Viro
2011-03-09 12:38 ` Stephen Wilson
2011-03-09 0:42 ` [PATCH 2/6] mm: factor out main logic of access_process_vm Stephen Wilson
2011-03-09 0:42 ` [PATCH 3/6] mm: implement access_remote_vm Stephen Wilson
2011-03-09 0:42 ` [PATCH 4/6] proc: disable mem_write after exec Stephen Wilson
2011-03-09 5:22 ` KOSAKI Motohiro
2011-03-09 0:42 ` [PATCH 5/6] proc: make check_mem_permission() return an mm_struct on success Stephen Wilson
2011-03-09 6:20 ` KOSAKI Motohiro
2011-03-09 0:42 ` Stephen Wilson [this message]
2011-03-09 1:30 ` [PATCH 0/6] enable writing to /proc/pid/mem Al Viro
2011-03-09 2:15 ` Stephen Wilson
2011-03-09 2:33 ` Al Viro
2011-03-09 2:47 ` Stephen Wilson
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