From: Al Viro <viro@ZenIV.linux.org.uk>
To: Nguyen Anh Quynh <aquynh@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Kuniyasu Suzaki <k.suzaki@aist.go.jp>
Subject: Re: [PATCH] fix calls to request_module()
Date: Thu, 11 Dec 2008 06:00:41 +0000 [thread overview]
Message-ID: <20081211060041.GN28946@ZenIV.linux.org.uk> (raw)
In-Reply-To: <9cde8bff0812102142s5d58b8dcibe5d36a68e09f367@mail.gmail.com>
On Thu, Dec 11, 2008 at 02:42:28PM +0900, Nguyen Anh Quynh wrote:
> > Ah, but that's different. Take a look at that warning and think _why_
> > it is given and what is it about. Getting an untrusted string as
> > format argument is a real security hole, but it has nothing to do
> > with a pile of cases in your patch.
>
> Yes, clearly the warning is to warn us about potential format string
> bugs. But I agree that there are a lot of false possitives.
>
> My patch is mainly to make gcc happy.
Your patch is mostly obfuscating the places gcc does *not* warn about...
Looking through it, only
drivers/media/video/cx18/cx18-driver.c
drivers/media/video/ivtv/ivtv-driver.c
drivers/media/video/pvrusb2/pvrusb2-hdw.c
drivers/media/video/zoran/zoran_card.c
drivers/mtd/chips/gen_probe.c
drivers/net/wireless/hostap/hostap_ioctl.c
drivers/of/of_spi.c
drivers/usb/storage/libusual.c
fs/dquot.c
fs/gfs2/locking.c
net/ieee80211/ieee80211_wx.c
sound/core/sound.c
are not of <string literal> -> "%s", <string literal> variety. Everything
else has never generated a format warning. At least trim the patch,
removing the obviously useless parts.
next prev parent reply other threads:[~2008-12-11 6:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-11 3:35 [PATCH] fix calls to request_module() Nguyen Anh Quynh
2008-12-11 4:01 ` Al Viro
2008-12-11 4:14 ` Nguyen Anh Quynh
2008-12-11 4:14 ` Andrew Morton
2008-12-11 4:23 ` Nguyen Anh Quynh
2008-12-11 4:40 ` Jianjun Kong
2008-12-11 4:43 ` Nguyen Anh Quynh
2008-12-11 5:02 ` Jianjun Kong
2008-12-11 5:00 ` Al Viro
2008-12-11 5:42 ` Nguyen Anh Quynh
2008-12-11 6:00 ` Al Viro [this message]
2008-12-11 6:28 ` Nguyen Anh Quynh
2008-12-11 4:49 ` Al Viro
2008-12-11 5:03 ` Roland Dreier
2008-12-11 5:41 ` Andrew Morton
2008-12-11 23:25 ` Roland Dreier
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