Messages in this thread |  | | Date | Thu, 31 Aug 2000 11:53:21 +0100 (BST) | From | Tigran Aivazian <> | Subject | Re: [PATCH] mtrr: s/suser/capable/ |
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On Thu, 31 Aug 2000, Matthew Kirkwood wrote:
> On Thu, 31 Aug 2000, Tigran Aivazian wrote: > > > Actually, microcode driver checks CAP_SYS_RAWIO only on open() so it > > would allow access to the receiver of fd even he has no CAP_SYS_RAWIO > > privilege. Hmmm, maybe I should put it back into write() method, as > > Linus (or someone else) did at some point (and I removed it)... > > Surely that's correct. Observe that root can send me > an fd to /etc/shadow or /dev/kmem if it so chooses.
ok, you are right - probably that is what I was thinking when I removed the capability check in ->write() :)
as for CAP_SYS_RAWIO in mtrr - our emails must have crossed in the air - I said exactly the same thing to Arnaldo...
Regards, Tigran
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