mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 04:07:44 +00:00
Kernel: Add a way to specify which memory regions can make syscalls
This patch adds sys$msyscall() which is loosely based on an OpenBSD mechanism for preventing syscalls from non-blessed memory regions. It works similarly to pledge and unveil, you can call it as many times as you like, and when you're finished, you call it with a null pointer and it will stop accepting new regions from then on. If a syscall later happens and doesn't originate from one of the previously blessed regions, the kernel will simply crash the process.
This commit is contained in:
parent
d57b4128a1
commit
823186031d
10 changed files with 43 additions and 1 deletions
|
@ -549,6 +549,8 @@ int Process::do_exec(NonnullRefPtr<FileDescription> main_program_description, Ve
|
|||
m_execpromises = 0;
|
||||
m_has_execpromises = false;
|
||||
|
||||
m_enforces_syscall_regions = false;
|
||||
|
||||
m_veil_state = VeilState::None;
|
||||
m_unveiled_paths.clear();
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue