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[Bug tapsets/15219] syscall.exp failures on RHEL5, RHEL6, and rawhide
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 04 Jun 2013 15:14:41 +0000
- Subject: [Bug tapsets/15219] syscall.exp failures on RHEL5, RHEL6, and rawhide
- Auto-submitted: auto-generated
- References: <bug-15219-6586 at http dot sourceware dot org/bugzilla/>
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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