Re: [PATCH v7 22/41] mm/mmap: Add shadow stack pages to memory accounting

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2023-03-06 at 14:01 +0100, Borislav Petkov wrote:
> On Mon, Feb 27, 2023 at 02:29:38PM -0800, Rick Edgecombe wrote:
> > From: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>
> > 
> > The x86 Control-flow Enforcement Technology (CET) feature includes
> > a new
> > type of memory called shadow stack. This shadow stack memory has
> > some
> > unusual properties, which requires some core mm changes to function
> > properly.
> > 
> > Account shadow stack pages to stack memory. Do this by adding a
> > VM_SHADOW_STACK check in is_stack_mapping().
> 
> That last sentence is superfluous.

Before this version it was open coded, but David Hildenbrand suggested
this is_stack_mapping() solution. Should it be explained more, or just
dropped?




[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux