Re: [PATCH V2] aacraid: Check size values after double-fetch from user

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>>>>> "Dave" == Dave Carroll <david.carroll@xxxxxxxxxxxxx> writes:

Dave> In aacraid's ioctl_send_fib() we do two fetches from userspace,
Dave> one the get the fib header's size and one for the fib
Dave> itself. Later we use the size field from the second fetch to
Dave> further process the fib. If for some reason the size from the
Dave> second fetch is different than from the first fix, we may
Dave> encounter an out-of- bounds access in aac_fib_send(). We also
Dave> check the sender size to insure it is not out of bounds. This was
Dave> reported in https://bugzilla.kernel.org/show_bug.cgi?id=116751 and
Dave> was assigned CVE- 2016-6480.

Applied to 4.8/scsi-fixes.

-- 
Martin K. Petersen	Oracle Linux Engineering
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