Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 029/107] powerpc/64s: Enhance the information in cpu_show_spectre_v1() | Date | Mon, 1 Apr 2019 19:01:44 +0200 |
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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"); }
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