Re: [PATCH] scsi: 3w-9xxx: Replace all non-returning strlcpy with strscpy

From: Kees Cook
Date: Mon May 22 2023 - 21:21:12 EST


On May 22, 2023 3:41:58 PM PDT, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> wrote:
>
>Kees,
>
>> On Wed, 17 May 2023 14:29:55 +0000, Azeem Shaikh wrote:
>>> strlcpy() reads the entire source buffer first.
>>> This read may exceed the destination size limit.
>>> This is both inefficient and can lead to linear read
>>> overflows if a source string is not NUL-terminated [1].
>>> In an effort to remove strlcpy() completely [2], replace
>>> strlcpy() here with strscpy().
>>> No return values were used, so direct replacement is safe.
>>>
>>> [...]
>>
>> Applied to for-next/hardening, thanks!
>>
>> [1/1] scsi: 3w-9xxx: Replace all non-returning strlcpy with strscpy
>> https://git.kernel.org/kees/c/fa36c95739ab
>
>Are you planning on sending these? That's fine with me, just need to
>know if I should close them in patchwork...

Yeah, I took a bunch that hadn't been picked up yet:
https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=for-next/hardening

Thanks!


--
Kees Cook