Shachar , you are 100%/ right ! Since I knew that mmap needs file descriptor I assumed ( and did not checked man page) that munmap need file descriptor. Great !!Thanks, Thanks, Thanks! 04.01.2019, 22:30, "Shachar Shemesh" : On 27/12/2018 15:34, Lev Olshvang wrote:Can you elaborate why I can not
On 05/01/2019 10:36, Lev Olshvang
wrote:
Since I knew that mmap needs file descriptor I assumed ( and did
not checked man page) that munmap need file descriptor.
That's not true either, actually. Mmap absolutely does not need
a file
I am researching this issue and I am confused with the finding
Some articles, ex
https://shanetully.com/2013/12/writing-a-self-mutating-x86_64-c-program/
state that mprotect() can change protection of executable section.
As I understanf pte entry has page protection bits set to RO so mprotect
All of the below seemed really strange to me, because I
researched it when I wrote fakeroot-ng. To make sure, I wrote the
following program:
#include
#include
#include
#include
#include
#include
int main() {
Hello all,
I am trying to harden the embedded system.
Is it possible and safe to mount /proc file system in a read-only mode and how
to do this?
I have embedded system with systemd where /proc is mounted rw.
I suspect that systemd mounts it when it bebins to bootsrtap user space.
On my very
On 05/01/2019 22:22, Shachar Shemesh
wrote:
Since the above completely describes what the loader does to an
executable file, I don't see how mprotect can be used there
either.
So, I decided to check my assumptions.
