linux-kernel - Re: [PATCH] audit: clear thread flag for new children

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 29 Oct 2007 16:15:30 -0700
From:	Tony Jones <tonyj@...e.de>
To:	Steve Grubb <sgrubb@...hat.com>
Cc:	linux-audit@...hat.com, linux-kernel@...r.kernel.org,
	chrisw@...s-sol.org, viro@....linux.org.uk
Subject: Re: [PATCH] audit: clear thread flag for new children

On Mon, Oct 29, 2007 at 06:04:31PM -0400, Steve Grubb wrote:

> If the child does not have the TIF_SYSCALL_AUDIT flag, it never goes into
> audit_syscall_entry. It becomes unauditable.

True but a task where current->audit_context == NULL is going to immediately
BUG out in audit_syscall_entry.  This is why the invocations of 
audit_syscall_entry() are conditional on current->audit_context.

> So when audit is re-enabled, how do you make that task auditable?

No idea. How do you do it currently? HINT: current->audit_context == NULL
for these tasks.  If !audit_enabled, then audit_alloc() is not going to 
allocate an audit_context for the task.

I'm very curious how you think one of these tasks becomes auditable later
on once audit is re-enabled,  regardless of the value of TIF_SYSCALL_AUDIT.

Tony
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/