Re: [PATCH 2/2] kunit: string: add strnlen SIZE_MAX test coverage

<[email protected]> Thu, 23 Jul 2026 17:37:53 +0800 (CST)

Newsgroups	org.kernel.vger.linux-hardening,org.infradead.lists.linux-riscv,org.kernel.vger.linux-kernel
Message-ID	<[email protected]>

>> Extend string_test_strnlen to validate strnlen behavior with
>> SIZE_MAX input:
>> ...
>> +            /* Test Count overflow fallback */
>> +            KUNIT_EXPECT_EQ(test, strnlen(s, SSIZE_MAX), len);

On 2026/7/22 15:10, Feng Jiang wrote:
> A similar patch has already been submitted:
> https://lore.kernel.org/all/[email protected]/Thanks for the pointer.

I checked the patch, but it does not actually cover the **Count overflow** case.
so my patch adds an explicit case for `strnlen(s, SIZE_MAX)`.
--
Best regards,
Gao Rui