agent-ptrace regression test failing in Ubuntu 22.04

[Chris Rapier]

I'm having the agent-ptrace consistently fail under Ubuntu 22.04. This 
is under a pristine Ubuntu 22.04 VM. If I set the envar SUDO=sudo I get:

make[1]: Entering directory '/home/parallels/openssh-portable/regress'
run test agent-ptrace.sh ...
ptrace succeeded?: exit code 1
failed disallow agent ptrace attach

The contents of gdb.out are:

GNU gdb (Ubuntu 12.0.90-0ubuntu1) 12.0.90
Copyright (C) 2022 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
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Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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     <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
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Reading symbols from /home/parallels/openssh-portable/ssh-agent...
Attaching to program: /home/parallels/openssh-portable/ssh-agent, 
process 54674
Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Inappropriate ioctl for device.
/home/parallels/openssh-portable/regress/54674: No such file or directory.
(gdb)

I don't know if GDB changed their wording but it certainly seems like 
the test should pass. If I update the egrep then it does pass but I'm 
not sure if that's legit. Anyway, I used the following:

diff --git a/regress/agent-ptrace.sh b/regress/agent-ptrace.sh
index feef5241..e5e5d32f 100644
--- a/regress/agent-ptrace.sh
+++ b/regress/agent-ptrace.sh
@@ -54,7 +54,7 @@ EOF
         if [ $r -ne 0 ]; then
                 fail "gdb failed: exit code $r"
         fi
-       egrep 'ptrace: Operation not permitted.|procfs:.*Permission 
denied.|ttrace.*Permission denied.|procfs:.*: Invalid argument.|Unable 
to access task ' >/dev/null ${OBJ}/gdb.out
+       egrep 'ptrace: Operation not permitted.|procfs:.*Permission 
denied.|ttrace.*Permission denied.|procfs:.*: Invalid argument.|Unable 
to access task |Could not attach to process.' >/dev/null ${OBJ}/gdb.out
         r=$?
         rm -f ${OBJ}/gdb.out
         if [ $r -ne 0 ]; then


Chris