From: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] sysctl: Allow non-root to read mmap_min_addr value
Date: Wed, 12 May 2010 10:39:29 +0200 [thread overview]
Message-ID: <20100512083929.GC21829@os.inf.tu-dresden.de> (raw)
Although /proc/sys/vm/mmap_min_addr has 644 permissions a read call returns
-EPERM. Allow any user to read the mmap_min_addr value.
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
---
security/min_addr.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/security/min_addr.c b/security/min_addr.c
index e86f297..f728728 100644
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -33,7 +33,7 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
{
int ret;
- if (!capable(CAP_SYS_RAWIO))
+ if (write && !capable(CAP_SYS_RAWIO))
return -EPERM;
ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
--
1.7.1
reply other threads:[~2010-05-12 9:24 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100512083929.GC21829@os.inf.tu-dresden.de \
--to=adam@os.inf.tu-dresden.de \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®