Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH] dma-mapping: Add BUG_ON for uninitialized dma_ops | Date | Wed, 19 Jun 2013 17:20:46 +0200 |
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On Friday 14 June 2013, James Bottomley wrote: > This is the MMAP_PAGE_ZERO exploit. The original exploit relied on a > leaky personality capability clearing mask and was fixed in 2.6.31 by > > commit f9fabcb58a6d26d6efde842d1703ac7cfa9427b6 > Author: Julien Tinnes <jt@cr0.org> > Date: Fri Jun 26 20:27:40 2009 +0200 > > personality: fix PER_CLEAR_ON_SETID > > So it's not really relevant to 3.x kernels, is it?
Probably not. There is always a risk that something like this can turn into an exploit, but it needs a combination with a couple of other bugs.
Arnd
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