This is a note to let you know that I've just added the patch titled

locking/refcounts: Do not force refcount_t usage as GPL-only export

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: locking-refcounts-do-not-force-refcount_t-usage-as-gpl-only-export.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From b562c171cf011d297059bd0265742eb5fab0ad2f Mon Sep 17 00:00:00 2001

From: Kees Cook keescook@chromium.org Date: Mon, 4 Dec 2017 17:24:54 -0800 Subject: locking/refcounts: Do not force refcount_t usage as GPL-only export

From: Kees Cook keescook@chromium.org

commit b562c171cf011d297059bd0265742eb5fab0ad2f upstream.

The refcount_t protection on x86 was not intended to use the stricter GPL export. This adjusts the linkage again to avoid a regression in the availability of the refcount API.

Reported-by: Dave Airlie airlied@gmail.com Fixes: 7a46ec0e2f48 ("locking/refcounts, x86/asm: Implement fast refcount overflow protection") Signed-off-by: Kees Cook keescook@chromium.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Cc: Ivan Kozik ivan@ludios.org Cc: Thomas Backlund tmb@mageia.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/x86/mm/extable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/mm/extable.c +++ b/arch/x86/mm/extable.c @@ -82,7 +82,7 @@ bool ex_handler_refcount(const struct ex

return true; } -EXPORT_SYMBOL_GPL(ex_handler_refcount); +EXPORT_SYMBOL(ex_handler_refcount);

/* * Handler for when we fail to restore a task's FPU state. We should never get

Patches currently in stable-queue which might be from keescook@chromium.org are

queue-4.14/locking-refcounts-x86-asm-use-unique-.text-section-for-refcount-exceptions.patch queue-4.14/locking-refcounts-x86-asm-enable-config_arch_has_refcount.patch queue-4.14/locking-refcounts-do-not-force-refcount_t-usage-as-gpl-only-export.patch