Hi Silviu, I encountered a use-after-free in the 5.71 release of Bluez which I bisected to this patch. The backtrace is below: #0 0x000055e93dbc8785 in a2dp_suspend_complete (session=<optimized out>, err=0, user_data=0x55e93e432520) at profiles/audio/transport.c:431 #1 0x000055e93dbb97ea in finalize_suspend (data=data@entry=0x55e93e435880) at profiles/audio/a2dp.c:376 #2 0x000055e93dbb98c0 in suspend_cfm (session=0x55e93e4317b0, sep=<optimized out>, stream=<optimized out>, err=0x0, user_data=0x55e93e41e850) at profiles/audio/a2dp.c:1276 #3 0x000055e93dbbfa4b in avdtp_suspend_resp (data=0x55e93e431823, size=<optimized out>, stream=0x55e93e433e60, session=0x55e93e4317b0) at profiles/audio/avdtp.c:2900 #4 avdtp_parse_resp (transaction=<optimized out>, size=<optimized out>, buf=0x55e93e431823, signal_id=<optimized out>, stream=0x55e93e433e60, session=0x55e93e4317b0) at profiles/audio/avdtp.c:2985 #5 session_cb (chan=<optimized out>, cond=<optimized out>, data=0x55e93e4317b0) at profiles/audio/avdtp.c:2286 #6 0x00007f5e225b9f69 in g_main_dispatch (context=0x55e93e3c6800) at ../glib/glib/gmain.c:3476 [...] Originally reported in [1] [1] https://gitlab.archlinux.org/archlinux/packaging/packages/bluez/-/issues/3 Cheers, Ronan