From: Gen Zhang <blackgod016574@gmail.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: paul@paul-moore.com, sds@tycho.nsa.gov, eparis@parisplace.org,
ccross@android.com, selinux@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] hooks: fix a missing-check bug in selinux_add_mnt_opt()
Date: Thu, 30 May 2019 17:18:48 +0800 [thread overview]
Message-ID: <20190530091848.GA3499@zhanggen-UX430UQ> (raw)
In-Reply-To: <e92b727a-bf5f-669a-18d8-7518a248c04c@cogentembedded.com>
On Thu, May 30, 2019 at 12:11:33PM +0300, Sergei Shtylyov wrote:
> Hello!
>
> On 30.05.2019 11:06, Gen Zhang wrote:
>
> >In selinux_add_mnt_opt(), 'val' is allcoted by kmemdup_nul(). It returns
>
> Allocated?
Thanks for your reply, Sergei. I used 'allocated' because kmemdup_nul()
does some allocation in its implementation. And its docs descrips:
"Return: newly allocated copy of @s with NUL-termination or %NULL in
case of error". I think it is proper to use 'allocated' here. But it
could be 'assigned', which is better, right?
Thanks
Gen
>
> >NULL when fails. So 'val' should be checked.
> >
> >Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
> [...]
>
> MBR, Sergei
next prev parent reply other threads:[~2019-05-30 9:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 8:06 [PATCH] hooks: fix a missing-check bug in selinux_add_mnt_opt() Gen Zhang
2019-05-30 8:30 ` Ondrej Mosnacek
2019-05-30 8:54 ` [PATCH v2] " Gen Zhang
2019-05-31 15:55 ` Paul Moore
2019-06-01 1:54 ` Gen Zhang
2019-05-30 9:11 ` [PATCH] " Sergei Shtylyov
2019-05-30 9:18 ` Gen Zhang [this message]
2019-05-30 9:22 ` Sergei Shtylyov
2019-05-30 9:24 ` Gen Zhang
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