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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2015-12-08 09:00:31 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2015-12-10 08:14:03 -0800
commit3417c1b5cb1fdc10261dbed42b05cc93166a78fd (patch)
tree76eb39bd1254171daf12a0e813a80b96a9ab961c /Makefile
parent527e9316f8ec44bd53d90fb9f611fa7ffff52bb9 (diff)
ses: Fix problems with simple enclosures
Simple enclosure implementations (mostly USB) are allowed to return only page 8 to every diagnostic query. That really confuses our implementation because we assume the return is the page we asked for and end up doing incorrect offsets based on bogus information leading to accesses outside of allocated ranges. Fix that by checking the page code of the return and giving an error if it isn't the one we asked for. This should fix reported bugs with USB storage by simply refusing to attach to enclosures that behave like this. It's also good defensive practise now that we're starting to see more USB enclosures. Reported-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: stable@vger.kernel.org Reviewed-by: Ewan D. Milne <emilne@redhat.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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