Re: [PATCH 14/18] ipv4: prevent bounds-check bypass via speculative execution

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

 



On Sat, 6 Jan 2018 10:01:54 +0100
Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Fri, Jan 05, 2018 at 05:11:10PM -0800, Dan Williams wrote:
> > Static analysis reports that 'offset' may be a user controlled value  
> 
> Can I see the rule that determined that?  It does not feel like that is
> correct, given the 3+ levels deep that this function gets this value
> from...

On a current x86 you can execute something upwards of 150 instructions in
a speculation window.

Alan



[Index of Archives]     [Linux Kernel]     [Kernel Newbies]     [x86 Platform Driver]     [Netdev]     [Linux Wireless]     [Netfilter]     [Bugtraq]     [Linux Filesystems]     [Yosemite Discussion]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]

  Powered by Linux