From: Dan Carpenter <error27@gmail.com>
To: Karsten Keil <isdn@linux-pingi.de>
Cc: "David S. Miller" <davem@davemloft.net>,
Tilman Schmidt <tilman@imap.cc>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] isdn: cleanup: make buffer smaller
Date: Sat, 4 Sep 2010 20:33:03 +0200 [thread overview]
Message-ID: <20100904183303.GN5437@bicker> (raw)
This showed up in my audit because we use strcpy() to copy "ds" into a
32 character buffer inside the isdn_tty_dial() function. But it turns
out that we only ever use the first 32 characters so it's OK. I have
changed the declaration to make the static checkers happy.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 51dc60d..f013ee1 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -3515,7 +3515,7 @@ isdn_tty_parse_at(modem_info * info)
{
atemu *m = &info->emu;
char *p;
- char ds[40];
+ char ds[ISDN_MSNLEN];
#ifdef ISDN_DEBUG_AT
printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd);
@@ -3594,7 +3594,7 @@ isdn_tty_parse_at(modem_info * info)
break;
case '3':
p++;
- sprintf(ds, "\r\n%d", info->emu.charge);
+ snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge);
isdn_tty_at_cout(ds, info);
break;
default:;
next reply other threads:[~2010-09-04 18:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-04 18:33 Dan Carpenter [this message]
2010-09-07 1:30 ` [patch] isdn: cleanup: make buffer smaller David Miller
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=20100904183303.GN5437@bicker \
--to=error27@gmail.com \
--cc=davem@davemloft.net \
--cc=isdn@linux-pingi.de \
--cc=kernel-janitors@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=tilman@imap.cc \
/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;
as well as URLs for NNTP newsgroup(s).