syscall_user_dispatch: Use CONFIG_SYSCTL for sysctl guard

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Commit 8d75c338f0 ("sysctl: remove CONFIG_PROC_SYSCTL, it just mirrors
CONFIG_SYSCTL") removed CONFIG_PROC_SYSCTL, but the sysctl added by
commit 5b6e32ba7b ("syscall_user_dispatch: Add
kernel.syscall_user_dispatch sysctl") is still guarded by it. Now that
both commits are merged, kernel.syscall_user_dispatch is no longer
registered.

syscall_user_dispatch_allowed defaults to true. SUD therefore remains
available, but administrators cannot disable new activations.

Use CONFIG_SYSCTL for the guard and documentation.

Fixes: 5b6e32ba7b ("syscall_user_dispatch: Add kernel.syscall_user_dispatch sysctl")
Assisted-by: Codex:gpt-5.6-sol
Acked-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Joel Granados <joel.granados@kernel.org>
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Bradley Morgan <include@grrlz.net>
Signed-off-by: Joel Granados <joel.granados@kernel.org>

...

This commit is contained in:

Karl Mehltretter 2026-08-22 09:23:25 +02:00 • committed by Joel Granados

parent df2908090c

commit 353a95f1cd

2 changed files with 3 additions and 3 deletions

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2

Documentation/admin-guide/sysctl/kernel.rst

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4

kernel/entry/syscall_user_dispatch.c

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