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docs: improve "Kernel Support" table #211

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Merged
merged 2 commits into from
Jul 9, 2025

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@cyphar cyphar commented Jul 9, 2025

open_tree(2) was added before fsopen(2), and so really we need two rows
to better describe the behaviour. Also it seems germane to actually
explain what kinds of threats there are with overmounts with each type
ProcfsHandle, for those that care.

To users I also suspect that ordering by minimum kernel version is far
easier to follow and provides more useful information ("given a kernel
version, above this line is supported, below this line is not").

Signed-off-by: Aleksa Sarai [email protected]

cyphar added 2 commits July 10, 2025 02:06
We probably should've always done this, but openat2(2) was originally
put first since it's probably the most important feature and was the
first thing I added.

But to users I suspect that ordering by minimum kernel version is far
easier to follow and provides more useful information ("given a kernel
version, above this line is supported, below this line is not").

Signed-off-by: Aleksa Sarai <[email protected]>
open_tree(2) was added before fsopen(2), and so really we need two rows
to better describe the behaviour. Also it seems germane to actually
explain what kinds of threats there are with overmounts with each type
ProcfsHandle, for those that care.

Signed-off-by: Aleksa Sarai <[email protected]>
@cyphar cyphar merged commit dd1f608 into cyphar:main Jul 9, 2025
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@cyphar cyphar deleted the improve-lib-doc-kernel branch July 16, 2025 00:08
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