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m68k: mm: Replace deprecated strncpy() with strscpy()

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strncpy() is deprecated for NUL-terminated destination buffers. Use
strscpy() instead and remove the manual NUL-termination.

Compile-tested only.

Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois@yoseli.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
This commit is contained in:
Thorsten Blum 2025-02-13 15:10:36 +01:00 committed by Greg Ungerer
parent 3d222ebf74
commit a7130910b8
1 changed files with 1 additions and 2 deletions
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3
arch/m68k/kernel/setup_mm.c
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@ -243,8 +243,7 @@ void __init setup_arch(char **cmdline_p)
setup_initial_init_mm((void *)PAGE_OFFSET, _etext, _edata, _end);
#if defined(CONFIG_BOOTPARAM)
strncpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE);
m68k_command_line[CL_SIZE - 1] = 0;
strscpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE);
#endif /* CONFIG_BOOTPARAM */
process_uboot_commandline(&m68k_command_line[0], CL_SIZE);
*cmdline_p = m68k_command_line;