Question regarding xwayland and ptrace

[moenyan]

Hello,

I've been writing apparmor profiles for things recently, and I happened 
to notice that xwayland tries to ptrace other processes, such as the 
compositor.. So, I'd like to ask: Is this normal, expected behavior? Why 
does it do that?


apparmor="DENIED" operation="ptrace" class="ptrace" profile="xwayland"  
comm="Xwayland" requested_mask="read" denied_mask="read" peer="xprop"
apparmor="DENIED" operation="ptrace" class="ptrace" profile="xwayland"  
comm="Xwayland" requested_mask="read" denied_mask="read" peer="hyprland"
apparmor="DENIED" operation="ptrace" class="ptrace" profile="xwayland"  
comm="Xwayland" requested_mask="read" denied_mask="read" peer="xhost"
apparmor="DENIED" operation="ptrace" class="ptrace" profile="xwayland"  
comm="Xwayland" requested_mask="read" denied_mask="read" 
peer="unconfined"


Thank you in advance.

Re: Question regarding xwayland and ptrace

[moenyan]

On 2024-07-18 09:31, Olivier Fourdan wrote:

Hi

On Wed, Jul 17, 2024 at 11:05 PM  wrote:


Hello,

I've been writing apparmor profiles for things recently, and I
happened
to notice that xwayland tries to ptrace other processes, such as the

compositor.. So, I'd like to ask: Is this normal, expected behavior?
Why
does it do that?


I'm not aware of that, is this with an unpatched version of Xwayland
from upstream?

Cheers
.o/

Thanks for the reply!

I'm using the package provided by arch. Looking at the PKGBUILD, it 
doesn't look like any patches are applied. The version is 24.1.1-1.