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    SubjectRe: access_ok inside kernelspace

    On Tue, 19 Oct 1999, Tigran Aivazian wrote:

    > And example I give is exec_modprobe() doing close(i) when it could just do
    > sys_close(i).

    well, there could be at least one valid reason, ptrace(). If you want to
    make one particular kernel daemon strace-able then the entry trap could be
    used. I dont know wether it actually works (looks like raceland), but that
    could be one reason. exec_modprobe is executed by a kernel thread (kmod),
    so it can be argued that it's a special case.

    -- mingo

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