Date: Mon, 20 Aug 2018 20:07:04 -0700 From: bowwave <bowwave2000@gmail.com> To: freebsd-security@freebsd.org Subject: Corruption seen from OCF after applying FreeBSD-SA-18:07.lazyfpu. Message-ID: <250A8BA1-0E7E-4CF9-875B-A41ABADE86CB@gmail.com>
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We have a product that uses OCF to encrypt disk blocks. Since applying = the FreeBSD-SA-18:07.lazyfpu patch we are seeing occasional corruption. = The amount of corrupted data is always less than the request size and is = always a multiple of the AES block size. Retrying the operation always = succeeds leading to the conclusion that this seems to be a locking = issue. The only thing so far that we can come up with is that this seems = to result from either the OCF layer itself or the AES-NI driver below = it. Looking for suggestions about where to proceed next.
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