Messages in this thread Patch in this message | | | Subject | [PATCH 19/19] x86, mpx: allow mixed binaries again | From | Dave Hansen <> | Date | Wed, 27 May 2015 11:36:21 -0700 |
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From: Dave Hansen <dave.hansen@linux.intel.com>
We explicitly disable allowing 32-bit binaries to enable MPX on 64-bit kernels. Re-allow that.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> ---
b/arch/x86/mm/mpx.c | 6 ------ 1 file changed, 6 deletions(-)
diff -puN arch/x86/mm/mpx.c~x86-mpx-allow-mixed-binaries-again arch/x86/mm/mpx.c --- a/arch/x86/mm/mpx.c~x86-mpx-allow-mixed-binaries-again 2015-05-27 09:32:21.991781640 -0700 +++ b/arch/x86/mm/mpx.c 2015-05-27 09:32:21.995781821 -0700 @@ -367,12 +367,6 @@ static __user void *mpx_get_bounds_dir(v return MPX_INVALID_BOUNDS_DIR; /* - * 32-bit binaries on 64-bit kernels are currently - * unsupported. - */ - if (IS_ENABLED(CONFIG_X86_64) && test_thread_flag(TIF_IA32)) - return MPX_INVALID_BOUNDS_DIR; - /* * The bounds directory pointer is stored in a register * only accessible if we first do an xsave. */ _
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