params: Do not go over the limit when getting the string length

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We can use strnlen() even on early stages and it prevents from
going over the string boundaries in case it's already too long.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231120151419.1661807-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Kees Cook <keescook@chromium.org>

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Andy Shevchenko 2023-11-20 17:11:43 +02:00 • committed by Kees Cook

parent 12cd3cd8c7

commit fd0cd057a1

1 changed files with 6 additions and 3 deletions

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kernel/params.c

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