Commit graph

5 commits

Author SHA1 Message Date
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
Piyush Patle
0dccc8ba21 include/debug.h: Move to include/nuttx/debug.h
debug.h is a NuttX-specific, non-POSIX header. Placing it in the
top-level include/ directory creates naming conflicts with external
projects that define their own debug.h.
This commit moves the canonical header to include/nuttx/debug.h,
following the NuttX convention for non-POSIX/non-standard headers,
and updates all in-tree references.

A backward-compatibility shim is left at include/debug.h that
emits a deprecation #warning and re-includes <nuttx/debug.h>,
allowing out-of-tree code to continue building while migrating.

Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
2026-04-07 07:50:06 -03:00
Alin Jerpelea
286d37026c drivers: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-11-06 18:02:25 +08:00
chao an
c6591c0f49 driver/serial: remove return value of up_putc()
modify the prototype of up_putc(): remove the return value

The architecture code does not care about the return value of up_putc(), so removing it saves two statements:

Before:                                                    After:
de4c: e52de004  push  {lr}    @ (str lr, [sp, #-4]!)    |  de4c: e52de004  push  {lr}    @ (str lr, [sp, #-4]!)
de50: e24dd014  sub sp, sp, #20                         |  de50: e24dd014  sub sp, sp, #20
de54: e58d0004  str r0, [sp, #4]                        |  de54: e58d0004  str r0, [sp, #4]
de58: e30030f8  movw  r3, #248  @ 0xf8                  |  de58: e30030f8  movw  r3, #248  @ 0xf8
de5c: e3423000  movt  r3, #8192 @ 0x2000                |  de5c: e3423000  movt  r3, #8192 @ 0x2000
de60: e58d300c  str r3, [sp, #12]                       |  de60: e58d300c  str r3, [sp, #12]
de64: e59d1004  ldr r1, [sp, #4]                        |  de64: e59d1004  ldr r1, [sp, #4]
de68: e59d000c  ldr r0, [sp, #12]                       |  de68: e59d000c  ldr r0, [sp, #12]
de6c: ebfffe66  bl  d80c <pl011_putc>                   |  de6c: ebfffe66  bl  d80c <pl011_putc>
de70: e59d3004  ldr r3, [sp, #4]                        |  de70: e28dd014  add sp, sp, #20
de74: e1a00003  mov r0, r3                              |  de74: e49df004  pop {pc}    @ (ldr pc, [sp], #4)
de78: e28dd014  add sp, sp, #20                         |
de7c: e49df004  pop {pc}    @ (ldr pc, [sp], #4)        |

Signed-off-by: chao an <anchao@lixiang.com>
2024-10-26 13:21:29 +08:00
chenxiaoyi
065046b2a2 serial: use hostfs read/write on stdio as uart
This is used to implement serial console on instruction set simulator (ISS).

Signed-off-by: chenxiaoyi <chenxiaoyi@xiaomi.com>
2024-09-28 13:53:06 +08:00