Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system call support

[Andi Kleen]

Alan <alan@xxxxxxxxxxxxxxxxxxx> writes:

Funny, it sounds like batch() on stereoids @) Ok with an async context it becomes
somewhat more interesting.
 
> 	sys_setuid/gid/etc need to be synchronous only and not occur
> while other async syscalls are running in parallel to meet current kernel
> assumptions.
> 
> 	sys_exec and other security boundaries must be synchronous only
> and not allow async "spill over" (consider setuid async binary patching)

He probably would need some generalization of Andrea's seccomp work.
Perhaps using bitmaps? For paranoia I would suggest to white list, not black list
calls.

-Andi
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