Hi Jann,
...
quoted
So I've made that section of text:
A process that has the CAP_SYS_PTRACE capability can update the
/proc/sys/kernel/yama/ptrace_scope file with one of the following
values:
0 ("classic ptrace permissions")
No additional restrictions on operations that perform
PTRACE_MODE_ATTACH checks (beyond those imposed by the com‐
moncap and other LSMs).
The use of PTRACE_TRACEME is unchanged.
1 ("restricted ptrace") [default value]
When performing an operation that requires a
PTRACE_MODE_ATTACH check, the calling process must either
have the CAP_SYS_PTRACE capability in the user namespace of
the target process or it have a predefined relationship
with the target process.
Nit: The grammar in this sentence seems wrong to me.
s/or it have/or it must have/?
Yep, thanks for catching that. Fixed now.
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/