Acked-By: Nick Kralevich <nnk@xxxxxxxxxx>
On Thu, Feb 26, 2015 at 1:54 PM, Jeff Vander Stoep <jeffv@xxxxxxxxxx> wrote:
> Commit f01e1af445fa ("selinux: don't pass in NULL avd to avc_has_perm_noaudit")
> made this pointer reassignment unnecessary. Avd should continue to reference
> the stack-based copy.
>
> Signed-off-by: Jeff Vander Stoep <jeffv@xxxxxxxxxx>
> ---
> security/selinux/avc.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/security/selinux/avc.c b/security/selinux/avc.c
> index afcc0ae..3c17dda 100644
> --- a/security/selinux/avc.c
> +++ b/security/selinux/avc.c
> @@ -724,12 +724,10 @@ inline int avc_has_perm_noaudit(u32 ssid, u32 tsid,
> rcu_read_lock();
>
> node = avc_lookup(ssid, tsid, tclass);
> - if (unlikely(!node)) {
> + if (unlikely(!node))
> node = avc_compute_av(ssid, tsid, tclass, avd);
> - } else {
> + else
> memcpy(avd, &node->ae.avd, sizeof(*avd));
> - avd = &node->ae.avd;
> - }
>
> denied = requested & ~(avd->allowed);
> if (unlikely(denied))
> --
> 2.2.0.rc0.207.ga3a616c
>
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--
Nick Kralevich | Android Security | nnk@xxxxxxxxxx | 650.214.4037
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