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Kernel: Add dedicated "ptrace" pledge promise

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The vast majority of programs don't ever need to use sys$ptrace(),
and it seems like a high-value system call to prevent a compromised
process from using.

This patch moves sys$ptrace() from the "proc" promise to its own,
new "ptrace" promise and updates the affected apps.
This commit is contained in:
Andreas Kling 2021-01-11 22:30:57 +01:00
parent 127ce32d9e
commit f03800cee3
6 changed files with 7 additions and 5 deletions
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Base/usr/share/man/man2/pledge.md
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@ -53,6 +53,7 @@ If the process later attempts to use any system functionality it has previously
* `sigaction`: Change signal handlers and dispositions (\*)
* `sendfd`: Send file descriptors over a local socket
* `recvfd`: Receive file descriptors over a local socket
* `ptrace`: The [`ptrace(2)`](ptrace.md) syscall (\*)
Promises marked with an asterisk (\*) are SerenityOS specific extensions not supported by the original OpenBSD `pledge()`.