2 Dec
2017
2 Dec
'17
5:21 a.m.
On Fri, 1 Dec 2017, Chris Torek wrote:
[...]
This part is natural, since signal delivery means
"run a function in
user space, with user privileges". If you're currently *in* the kernel
on behalf of some user process, that means you have to get *out* of it
in that same process.
Which leads to the classic comment (it's right up there with the famous
"line 2238") along the lines of "we ask a process to do something to
itself".
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."