Re: [PATCH v6 8/9] vsprintf: Prevent crash when dereferencing invalid pointers

From: Sergey Senozhatsky
Date: Tue Feb 19 2019 - 07:51:22 EST


On (02/19/19 13:02), Andy Shevchenko wrote:
[..]
> And if it's not? You will get in either case incomplete information,
> but at least with "(e" (or even "(") you might get a clue that it
> errornous conditions.

The thing I'm signaling here is that in some cases we still can
crash the kernel; with the difference that invalid dereference
can now be a memory corruption. Just saying.

-ss