Merge branch 'free-strdup-memory-in-selftests'

Geliang Tang says:

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Free strdup memory in selftests

From: Geliang Tang <tanggeliang@kylinos.cn>

Two fixes to free strdup memory in selftests to avoid memory leaks.
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Link: https://lore.kernel.org/r/cover.1714374022.git.tanggeliang@kylinos.cn


Signed-off-by: Andrii Nakryiko <andrii@kernel.org>