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[Bug tapsets/15219] syscall.exp failures on RHEL5, RHEL6, and rawhide


http://sourceware.org/bugzilla/show_bug.cgi?id=15219

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |jlebon at redhat dot com

--- Comment #4 from Frank Ch. Eigler <fche at redhat dot com> ---
ISTM that the places where we do _stp_copy_from_user in the
tapset, we could conditionalize those functions based on get_fs(),
dispatching to a new _stp_copy_from_kernel() or somesuch.  These
would account for the kernel's internal set_fs games that are
known to occur on those particular parameters.  I would disfavour
opening up the automation in the, as a belt&suspenders kind of
safety measure against inappropriate information disclosure.

BTW, tapset/linux/aux_syscalls.stp, _struct-itemerspec_u(), with
its NULL / UNKNOWN coding style, is implicated in bug #15044.

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