linux-kernel - Re: linux-next: manual merge of the userns tree with the security tree

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Date:	Mon, 24 Sep 2012 22:17:52 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Moody <pmoody@...gle.com>
Subject: Re: linux-next: manual merge of the userns tree with the security
 tree

Hi,

On Mon, 24 Sep 2012 21:41:16 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> diff --cc kernel/auditsc.c
> index 37f52f2,ff4798f..0000000
> --- a/kernel/auditsc.c
> +++ b/kernel/auditsc.c
> @@@ -1160,32 -1151,8 +1152,38 @@@ void audit_log_task_info(struct audit_b
>   	char name[sizeof(tsk->comm)];
>   	struct mm_struct *mm = tsk->mm;
>   	struct vm_area_struct *vma;
>  +	char *tty;
>  +
>  +	if (!ab)
>  +		return;
>   
>   	/* tsk == current */
>  +	cred = current_cred();
>  +
>  +	spin_lock_irq(&tsk->sighand->siglock);
>  +	if (tsk->signal && tsk->signal->tty && tsk->signal->tty->name)
>  +		tty = tsk->signal->tty->name;
>  +	else
>  +		tty = "(none)";
>  +	spin_unlock_irq(&tsk->sighand->siglock);
>  +
>  +
>  +	audit_log_format(ab,
>  +			 " ppid=%ld pid=%d auid=%u uid=%u gid=%u"
>  +			 " euid=%u suid=%u fsuid=%u"
>  +			 " egid=%u sgid=%u fsgid=%u ses=%u tty=%s",
>  +			 sys_getppid(),
>  +			 tsk->pid,
> - 			 tsk->loginuid, cred->uid, cred->gid,
> - 			 cred->euid, cred->suid, cred->fsuid,
> - 			 cred->egid, cred->sgid, cred->fsgid,
> ++			 from_kuid(&init_user_ns, tsk->loginuid),
> ++			 from_kuid(&init_user_ns, context->uid),
> ++			 from_kgid(&init_user_ns, context->gid),
> ++			 from_kuid(&init_user_ns, context->euid),
> ++			 from_kuid(&init_user_ns, context->suid),
> ++			 from_kuid(&init_user_ns, context->fsuid),
> ++			 from_kgid(&init_user_ns, context->egid),
> ++			 from_kgid(&init_user_ns, context->sgid),
> ++			 from_kgid(&init_user_ns, context->fsgid),

These should all be "cred" not "context", of course.  I fixed this in my
tree.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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