Tobias Stoeckmann 674409e226 lib/: Saturate addition to avoid overflow ...

Very large values in /etc/shadow could lead to overflows.  Make sure
that these calculations are saturated at LONG_MAX.  Since entries are
based on days and not seconds since epoch, saturating won't hurt anyone.

Co-developed-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Co-developed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

2024-02-13 16:02:49 -06:00

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