| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 18/76] powerpc/64s: Enhance the information in cpu_show_spectre_v1() | Date | Mon, 15 Apr 2019 20:43:42 +0200 |
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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: Sasha Levin <sashal@kernel.org> --- arch/powerpc/kernel/security.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index d0e974da4918..f189f946d935 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -121,6 +121,9 @@ ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, c 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"); } -- 2.19.1
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