WSL2-Linux-Kernel/drivers/usb/typec
Abhishek Pandit-Subedi 3aa56313b0 usb: typec: ucsi: Fix null pointer dereference in trace
[ Upstream commit 99516f76db48e1a9d54cdfed63c1babcee4e71a5 ]

ucsi_register_altmode checks IS_ERR for the alt pointer and treats
NULL as valid. When CONFIG_TYPEC_DP_ALTMODE is not enabled,
ucsi_register_displayport returns NULL which causes a NULL pointer
dereference in trace. Rather than return NULL, call
typec_port_register_altmode to register DisplayPort alternate mode
as a non-controllable mode when CONFIG_TYPEC_DP_ALTMODE is not enabled.

Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240510201244.2968152-2-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12 11:07:41 +02:00
..
altmodes usb: typec: altmodes/displayport: fix pin_assignment_show 2023-05-24 17:36:53 +01:00
mux usb: typec: intel_pmc_mux: Don't leak the ACPI device reference count 2023-03-10 09:39:37 +01:00
tcpm usb: typec: tcpm: Ignore received Hard Reset in TOGGLING state 2024-07-05 09:14:14 +02:00
tipd usb: typec: tipd: Fix spurious fwnode_handle_put in error path 2022-12-31 13:14:27 +01:00
ucsi usb: typec: ucsi: Fix null pointer dereference in trace 2024-09-12 11:07:41 +02:00
Kconfig
Makefile
bus.c usb: typec: bus: verify partner exists in typec_altmode_attention 2023-09-19 12:22:53 +02:00
bus.h
class.c usb: typec: class: fix typec_altmode_put_partner to put plugs 2024-01-25 14:52:47 -08:00
class.h
hd3ss3220.c
mux.c
mux.h
port-mapper.c
qcom-pmic-typec.c
stusb160x.c