linux-kernel - Re: [PATCH 1/9] selinux: check return value of sel_make_avc

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Date:   Tue, 25 Jan 2022 19:35:59 -0500
From:   Paul Moore <paul@...l-moore.com>
To:     Christian Göttsche <cgzones@...glemail.com>
Cc:     selinux@...r.kernel.org,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Eric Paris <eparis@...isplace.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Jeff Vander Stoep <jeffv@...gle.com>,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH 1/9] selinux: check return value of sel_make_avc_files

On Tue, Jan 25, 2022 at 9:15 AM Christian Göttsche
<cgzones@...glemail.com> wrote:
>
> sel_make_avc_files() might fail and return a negative errno value on
> memory allocation failures. Re-add the check of the return value,
> dropped in 66f8e2f03c02.
>
> Reported by clang-analyzer:
>
>     security/selinux/selinuxfs.c:2129:2: warning: Value stored to 'ret' is never read [deadcode.DeadStores]
>             ret = sel_make_avc_files(dentry);
>             ^     ~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Fixes: 66f8e2f03c02 ("selinux: sidtab reverse lookup hash table")
> Signed-off-by: Christian Göttsche <cgzones@...glemail.com>
> ---
>  security/selinux/selinuxfs.c | 2 ++
>  1 file changed, 2 insertions(+)

Merged into selinux/next, thanks Christian.

-- 
paul-moore.com