From: Fuqian Huang <huangfq.daxian@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: stable@vegr.kernel.org, gregkh@linuxfoundation.org,
Fuqian Huang <huangfq.daxian@gmail.com>,
Chas Williams <3chas3@gmail.com>,
linux-atm-general@lists.sourceforge.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 4.14] atm:idt77252: Fix a kernel address leakage in idt77252
Date: Tue, 16 Apr 2019 14:57:27 +0800 [thread overview]
Message-ID: <20190416065727.13303-1-huangfq.daxian@gmail.com> (raw)
Outputting kernel addresses will reveal the locations of kernel code
and data. And there is no need to print the address of
function idt77252_init in idt77252_init.
This case is similar to CVE-2018-7273[1].
Just remove the print statement.
[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7273
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
drivers/atm/idt77252.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 47f3c4a..76e7736 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -3743,8 +3743,6 @@ static int __init idt77252_init(void)
{
struct sk_buff *skb;
- printk("%s: at %p\n", __func__, idt77252_init);
-
if (sizeof(skb->cb) < sizeof(struct atm_skb_data) +
sizeof(struct idt77252_skb_prv)) {
printk(KERN_ERR "%s: skb->cb is too small (%lu < %lu)\n",
--
2.11.0
next reply other threads:[~2019-04-16 6:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-16 6:57 Fuqian Huang [this message]
2019-04-16 8:56 ` Greg KH
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=20190416065727.13303-1-huangfq.daxian@gmail.com \
--to=huangfq.daxian@gmail.com \
--cc=3chas3@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-atm-general@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=stable@vegr.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®