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    Subject[ 01/55] tilegx: enable SYSCALL_WRAPPERS support
    3.0-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Chris Metcalf <cmetcalf@tilera.com>

    commit e6d9668e119af44ae5bcd5f1197174531458afe3 upstream.

    Some discussion with the glibc mailing lists revealed that this was
    necessary for 64-bit platforms with MIPS-like sign-extension rules
    for 32-bit values. The original symptom was that passing (uid_t)-1 to
    setreuid() was failing in programs linked -pthread because of the "setxid"
    mechanism for passing setxid-type function arguments to the syscall code.
    SYSCALL_WRAPPERS handles ensuring that all syscall arguments end up with
    proper sign-extension and is thus the appropriate fix for this problem.

    On other platforms (s390, powerpc, sparc64, and mips) this was fixed
    in 2.6.28.6. The general issue is tracked as CVE-2009-0029.

    Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/tile/Kconfig | 1 +
    1 file changed, 1 insertion(+)

    --- a/arch/tile/Kconfig
    +++ b/arch/tile/Kconfig
    @@ -11,6 +11,7 @@ config TILE
    select GENERIC_IRQ_PROBE
    select GENERIC_PENDING_IRQ if SMP
    select GENERIC_IRQ_SHOW
    + select HAVE_SYSCALL_WRAPPERS if TILEGX
    select SYS_HYPERVISOR

    # FIXME: investigate whether we need/want these options.



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