Fix: GDB 15.1 rpyc detection (Gallopsled#2469)

* Fix: GDB 15 rpyc detection

* Update CHANGELOG.md

* Changelog on the right version

* Remove extra newline in CHANGELOG.md

Author: SecT0uch

CHANGELOG.md

@@ -124,10 +124,12 @@ The table below shows which release corresponds to each branch, and what date th
 - [#2466][2466] Fix PLT emulation with Unicorn 2.1.0
 - [#2466][2466] Switch to PyPi Simple API for update checks
 - [#2467][2467] Fix loading at all on Windows
+- [#2469][2469] GDB 15+ rpyc detection
 
 [2445]: https://github.com/Gallopsled/pwntools/pull/2445
 [2466]: https://github.com/Gallopsled/pwntools/pull/2466
 [2467]: https://github.com/Gallopsled/pwntools/pull/2467
+[2469]: https://github.com/Gallopsled/pwntools/pull/2469
 
 ## 4.13.0 (`stable`)
 

pwnlib/gdb.py

@@ -1245,7 +1245,7 @@ def preexec_fn():
         else:
             # Check to see if RPyC is installed at all in GDB
             rpyc_check = [gdb_binary, '--nx', '-batch', '-ex',
-                          'python import rpyc; import sys; sys.exit(123)']
+                          'python import rpyc; import gdb; gdb.execute("quit 123")']
 
             if 123 != tubes.process.process(rpyc_check).poll(block=True):
                 log.error('Failed to connect to GDB: rpyc is not installed')