Re: [PATCH v12 06/13] seccomp: add system call filtering using BPF

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

On 03/01/2012 09:45 PM, Indan Zupancic wrote:
> 
>> + * @nr: the system call number
>> + * @arch: indicates system call convention as an AUDIT_ARCH_* value
>> + *        as defined in <linux/audit.h>.
>> + * @instruction_pointer: at the time of the system call.
> 
> If the vDSO is used this will always be the same, so what good is this?
> I haven't gotten an answer to this yet.
> 

And if it isn't, or you're on an architecture which doesn't use the vdso
as the launching point, it's not. You seem to be unable to look outside
your own particular use cases, but it is very likely that the same
oddball cases which do mixed-mode programming are ones for which this
kind of filtering facility would be extremely useful -- Pin is a great
example.

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Linux Kernel Discussion]     [Ethernet Bridging]     [Linux Wireless Networking]     [Linux Bluetooth Networking]     [Linux Networking Users]     [VLAN]     [Git]     [IETF Annouce]     [Linux Assembly]     [Security]     [Bugtraq]     [Photo]     [Singles Social Networking]     [Yosemite Information]     [MIPS Linux]     [ARM Linux Kernel]     [ARM Linux]     [Linux Virtualization]     [Linux Security]     [Linux IDE]     [Linux RAID]     [Linux SCSI]     [Free Dating]

Add to Google Powered by Linux