4.4-stable review patch. If anyone has any objections, please let me know.
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From: Rian Hunter rian@alum.mit.edu
commit dc76803e57cc86589c4efcb5362918f9b0c0436f upstream.
The consolidation of the start_thread() functions removed the export unintentionally. This breaks binfmt handlers built as a module.
Add it back.
Fixes: e634d8fc792c ("x86-64: merge the standard and compat start_thread() functions") Signed-off-by: Rian Hunter rian@alum.mit.edu Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: "H. Peter Anvin" hpa@zytor.com Cc: Andy Lutomirski luto@kernel.org Cc: Borislav Petkov bpetkov@suse.de Cc: Vitaly Kuznetsov vkuznets@redhat.com Cc: Joerg Roedel jroedel@suse.de Cc: Dmitry Safonov dima@arista.com Cc: Josh Poimboeuf jpoimboe@redhat.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180819230854.7275-1-rian@alum.mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/x86/kernel/process_64.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -250,6 +250,7 @@ start_thread(struct pt_regs *regs, unsig start_thread_common(regs, new_ip, new_sp, __USER_CS, __USER_DS, 0); } +EXPORT_SYMBOL_GPL(start_thread);
#ifdef CONFIG_COMPAT void compat_start_thread(struct pt_regs *regs, u32 new_ip, u32 new_sp)