linux-kernel - Re: [PATCH] Smack: Fix memory leak in smack_inode

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Message-ID: <20180604212704.GC1351649@devbig577.frc2.facebook.com>
Date:   Mon, 4 Jun 2018 14:27:04 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Casey Schaufler <casey@...aufler-ca.com>
Cc:     "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>, chandan.vn@...sung.com,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "bfields@...ldses.org" <bfields@...ldses.org>,
        "jlayton@...nel.org" <jlayton@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
        CPGS <cpgs@...sung.com>,
        Sireesha Talluri <sireesha.t@...sung.com>,
        Chris Wright <chrisw@...s-sol.org>
Subject: Re: [PATCH] Smack: Fix memory leak in smack_inode_getsecctx

On Mon, Jun 04, 2018 at 02:01:34PM -0700, Casey Schaufler wrote:
> On 6/1/2018 10:45 AM, Casey Schaufler wrote:
> > Fix memory leak in smack_inode_getsecctx
> >
> > The implementation of smack_inode_getsecctx() made
> > incorrect assumptions about how Smack presents a security
> > context. Smack does not need to allocate memory to support
> > security contexts, so "releasing" a Smack context is a no-op.
> > The code made an unnecessary copy and returned that as a
> > context, which was never freed. The revised implementation
> > returns the context correctly.
> >
> > Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
> 
> Tejun, does this pass your tests?

Oh, I'm not the one who reported.  Chandan?

-- 
tejun