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;a=summary
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@xxxxxxxxxxxxxxx> know about it.
>From b562c171cf011d297059bd0265742eb5fab0ad2f Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
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@xxxxxxxxx>
Fixes: 7a46ec0e2f48 ("locking/refcounts, x86/asm: Implement fast refcount overflow protection")
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Ivan Kozik <ivan@xxxxxxxxxx>
Cc: Thomas Backlund <tmb@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxx 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