From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/tty/serdev/Kconfig | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 drivers/tty/serdev/Kconfig (limited to 'drivers/tty/serdev/Kconfig') diff --git a/drivers/tty/serdev/Kconfig b/drivers/tty/serdev/Kconfig new file mode 100644 index 000000000..e6dfe949a --- /dev/null +++ b/drivers/tty/serdev/Kconfig @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Serial bus device driver configuration +# +menuconfig SERIAL_DEV_BUS + tristate "Serial device bus" + help + Core support for devices connected via a serial port. + + Note that you typically also want to enable TTY port controller support. + +config RUST_SERIAL_DEV_BUS_ABSTRACTIONS + bool "Rust Serial device bus abstractions" + depends on RUST + select SERIAL_DEV_BUS + help + This enables the Rust abstraction for the serial device bus API. + +if SERIAL_DEV_BUS + +config SERIAL_DEV_CTRL_TTYPORT + bool "Serial device TTY port controller" + help + Say Y here if you want to use the Serial device bus with common TTY + drivers (e.g. serial drivers). + + If unsure, say Y. + depends on TTY + depends on SERIAL_DEV_BUS != m + default y + +endif -- cgit v1.3.1