lib/string_kunit: add correctness test for strnlen()

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Add a KUnit test for strnlen() to verify correctness across
different string lengths and memory alignments. Use vmalloc()
to place the NUL character at the page boundary to ensure
over-reads are detected.

Suggested-by: Andy Shevchenko <andy@kernel.org>
Suggested-by: Kees Cook <kees@kernel.org>
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20260130025018.172925-3-jiangfeng@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>

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Feng Jiang 2026-04-03 19:28:47 -06:00 • committed by Paul Walmsley

parent ae45f896a4

commit 263dca234e

1 changed files with 35 additions and 0 deletions

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lib/tests/string_kunit.c

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