Re: [PATCH] binder: fix test regression due to sender_euid change

2021-11-24 Thread Greg KH
On Fri, Nov 19, 2021 at 03:39:59PM -0800, Todd Kjos wrote:
> On Fri, Nov 19, 2021 at 3:00 PM Paul Moore  wrote:
> >
> > On Fri, Nov 12, 2021 at 1:07 PM Todd Kjos  wrote:
> > >
> > > This is a partial revert of commit
> > > 29bc22ac5e5b ("binder: use euid from cred instead of using task").
> > > Setting sender_euid using proc->cred caused some Android system test
> > > regressions that need further investigation. It is a partial
> > > reversion because subsequent patches rely on proc->cred.
> > >
> > > Cc: sta...@vger.kernel.org # 4.4+
> > > Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task")
> > > Signed-off-by: Todd Kjos 
> > > Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66
> 
> Greg, I neglected to remove the "Change-Id" from my Android pre-submit
> testing. Can you remove that, or would you like me to resubmit without
> it?

Sorry, I missed it too.  It's already in my tree, no need to worry about
it.

greg k-h
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Re: [PATCH] binder: fix test regression due to sender_euid change

2021-11-19 Thread Paul Moore
On Fri, Nov 12, 2021 at 1:07 PM Todd Kjos  wrote:
>
> This is a partial revert of commit
> 29bc22ac5e5b ("binder: use euid from cred instead of using task").
> Setting sender_euid using proc->cred caused some Android system test
> regressions that need further investigation. It is a partial
> reversion because subsequent patches rely on proc->cred.
>
> Cc: sta...@vger.kernel.org # 4.4+
> Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task")
> Signed-off-by: Todd Kjos 
> Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66
> ---
> - the issue was introduced in 5.16-rc1, so please apply to 5.16
> - this should apply cleanly to all stable branches back to 4.4
>   that contain "binder: use euid from cred instead of using task"
>
>
>  drivers/android/binder.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This looks okay to me.  I assume this is going in via GregKH's tree?

Acked-by: Paul Moore 

> diff --git a/drivers/android/binder.c b/drivers/android/binder.c
> index 49fb74196d02..cffbe57a8e08 100644
> --- a/drivers/android/binder.c
> +++ b/drivers/android/binder.c
> @@ -2710,7 +2710,7 @@ static void binder_transaction(struct binder_proc *proc,
> t->from = thread;
> else
> t->from = NULL;
> -   t->sender_euid = proc->cred->euid;
> +   t->sender_euid = task_euid(proc->tsk);
> t->to_proc = target_proc;
> t->to_thread = target_thread;
> t->code = tr->code;
> --
> 2.34.0.rc1.387.gb447b232ab-goog

-- 
paul moore
www.paul-moore.com
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Re: [PATCH] binder: fix test regression due to sender_euid change

2021-11-16 Thread Christian Brauner
On Fri, Nov 12, 2021 at 10:07:20AM -0800, Todd Kjos wrote:
> This is a partial revert of commit
> 29bc22ac5e5b ("binder: use euid from cred instead of using task").
> Setting sender_euid using proc->cred caused some Android system test
> regressions that need further investigation. It is a partial
> reversion because subsequent patches rely on proc->cred.
> 
> Cc: sta...@vger.kernel.org # 4.4+
> Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task")
> Signed-off-by: Todd Kjos 
> Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66
> ---

Acked-by: Christian Brauner 
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