4.14-stable review patch. If anyone has any objections, please let me know.
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From: Michal Suchanek msuchanek@suse.de
commit a377514519b9a20fa1ea9adddbb4129573129cef upstream.
We now have barrier_nospec as mitigation so print it in cpu_show_spectre_v1() when enabled.
Signed-off-by: Michal Suchanek msuchanek@suse.de Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/security.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -120,6 +120,9 @@ ssize_t cpu_show_spectre_v1(struct devic if (!security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) return sprintf(buf, "Not affected\n");
+ if (barrier_nospec_enabled) + return sprintf(buf, "Mitigation: __user pointer sanitization\n"); + return sprintf(buf, "Vulnerable\n"); }