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Catalin Visinescu a30bbfee6b drivers/: Multiple Drivers Are Registered With World Writable Part 3 
Summary

Permissions (Part 3)

Description:

In kernel builds, any unprivileged process running on the NuttX device can
open /dev/efuse and attempt to read/write fuse content. Reading the fuses
may provide valuable information to an attacker controlling the user process.
The write operation, in extreme cases where the fuse blocks are not locked,
may brick the device.

DISCLAIMER: I tried to be strict with the settings, better to relax them
later if it's needed.

This is part of https://github.com/apache/nuttx/issues/19410

Impact

See https://github.com/apache/nuttx/issues/19410

Testing

Compiles ok.

Signed-off-by: Catalin Visinescu <catalin_visinescu@yahoo.com>
2026-07-16 09:49:07 -03:00
..
CMakeLists.txt serial/xlnx_ps: add common Xilinx UART Peripheral System (XUARTPS) support 2026-02-27 08:14:03 -03:00
Kconfig serial/xlnx_ps: add help chapter for XUARTPS 2026-02-27 08:14:03 -03:00
Kconfig-16550 drivers/serial/16550: add polling mode support for serial drivers 2026-02-27 08:14:03 -03:00
Kconfig-cmsdk drivers/serial:support arm cmsdk drivers 2024-04-26 18:42:35 -03:00
Kconfig-lpuart Add initial support for NXP S32K3 MCU family 2022-07-25 23:47:05 +08:00
Kconfig-pci drivers/serial: simplify 16550_PCI_UARTx_CLOCK config 2025-01-03 08:52:43 +08:00
Kconfig-pl011 drivers/serial/uart_pl011.c : add the interface about clock and reset control for reducing power consumption. 2024-06-03 21:18:44 +08:00
Kconfig-sci We have ported NuttX on Renesas RX65N Micro-controller. This port includes following interfaces 2019-10-11 23:36:57 +08:00
Kconfig-uart drivers/serial/Kconfig: Split serial Rx/Tx DMA. 2019-12-03 07:06:30 -06:00
Kconfig-usart drivers/serial/serial: prevent race conditions on 8-bit architectures 2025-06-19 10:01:24 -03:00
Kconfig-xlnxps drivers/serial/xlnxps: add polling mode support for serial drivers 2026-02-27 08:14:03 -03:00
Make.defs serial/xlnx_ps: add common Xilinx UART Peripheral System (XUARTPS) support 2026-02-27 08:14:03 -03:00
ptmx.c drivers/: Multiple Drivers Are Registered With World Writable - Part 2 2026-07-15 15:27:28 +08:00
pty.c drivers/: Multiple Drivers Are Registered With World Writable - Part 2 2026-07-15 15:27:28 +08:00
pty.h drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
serial.c drivers/: Multiple Drivers Are Registered With World Writable - Part 2 2026-07-15 15:27:28 +08:00
serial_cmsdk.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
serial_dma.c style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
serial_gdbstub.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
serial_io.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
uart_16550.c arch/mips: Add basic support for MIPS Creator CI20 board 2026-07-15 08:02:55 -03:00
uart_bth4.c drivers/: Multiple Drivers Are Registered With World Writable - Part 2 2026-07-15 15:27:28 +08:00
uart_bth5.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
uart_hostfs.c drivers/: Multiple Drivers Are Registered With World Writable Part 3 2026-07-16 09:49:07 -03:00
uart_pci_16550.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
uart_pl011.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
uart_ram.c drivers/serial/uart_ram: match uart_ops_s receive() prototype 2026-07-09 09:59:27 -04:00
uart_rpmsg.c serial/uart_rpmsg: Remove redundant CONFIG_RPMSG_UART_CONSOLE macro check 2026-03-03 11:55:34 -05:00
uart_rpmsg_raw.c serial/uart_rpmsg: Remove redundant CONFIG_RPMSG_UART_CONSOLE macro check 2026-03-03 11:55:34 -05:00
uart_xlnx_ps.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00