Chenyuan Yang 4f750b8462 w1: fix NULL pointer dereference in probe ... [ Upstream commit 0dd6770a72 ] The w1_uart_probe() function calls w1_uart_serdev_open() (which includes devm_serdev_device_open()) before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384e ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via w1_uart_serdev_open(). Fixes: a3c0880436 ("w1: add UART w1 bus driver") Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com> Acked-by: Christoph Winklhofer <cj.winklhofer@gmail.com> Link: https://lore.kernel.org/r/20250111181803.2283611-1-chenyuan0y@gmail.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-04-10 14:39:22 +02:00
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masters	w1: fix NULL pointer dereference in probe	2025-04-10 14:39:22 +02:00
slaves
Kconfig
Makefile
w1_family.c
w1_int.c	w1: Drop allocation error message	2024-05-28 17:45:02 +02:00
w1_internal.h
w1_io.c
w1_netlink.c
w1_netlink.h
w1.c