From: Thomas Gleixner tglx@linutronix.de
stable inclusion from stable-v4.19.266 commit 78c9a72da30a2a6e30c190f431d03a3b06bdcdc0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I5GZ2Z CVE: CVE-2022-29901
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commit ba5bade4cc0d2013cdf5634dae554693c968a090 upstream.
There is no reason that this gunk is in a generic header file. The wildcard defines need to stay as they are required by file2alias.
Signed-off-by: Thomas Gleixner tglx@linutronix.de Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Link: https://lkml.kernel.org/r/20200320131508.736205164@linutronix.de Signed-off-by: Thadeu Lima de Souza Cascardo cascardo@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [suleiman: vmx.c moved] Signed-off-by: Suleiman Souhlal suleiman@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Lin Yujun linyujun809@huawei.com Reviewed-by: Zhang Jianhua chris.zjh@huawei.com Reviewed-by: Liao Chang liaochang1@huawei.com Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com --- arch/x86/include/asm/cpu_device_id.h | 13 ++++++++++++- arch/x86/kvm/svm.c | 1 + arch/x86/kvm/vmx.c | 1 + drivers/cpufreq/acpi-cpufreq.c | 1 + drivers/cpufreq/amd_freq_sensitivity.c | 1 + include/linux/mod_devicetable.h | 4 +--- 6 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h index 31c379c1da41..a28dc6ba5be1 100644 --- a/arch/x86/include/asm/cpu_device_id.h +++ b/arch/x86/include/asm/cpu_device_id.h @@ -6,9 +6,20 @@ * Declare drivers belonging to specific x86 CPUs * Similar in spirit to pci_device_id and related PCI functions */ - #include <linux/mod_devicetable.h>
+/* + * The wildcard initializers are in mod_devicetable.h because + * file2alias needs them. Sigh. + */ + +#define X86_FEATURE_MATCH(x) { \ + .vendor = X86_VENDOR_ANY, \ + .family = X86_FAMILY_ANY, \ + .model = X86_MODEL_ANY, \ + .feature = x, \ +} + /* * Match specific microcode revisions. * diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index f611ecdfc145..b209f7f8eb5b 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -50,6 +50,7 @@ #include <asm/kvm_para.h> #include <asm/irq_remapping.h> #include <asm/spec-ctrl.h> +#include <asm/cpu_device_id.h>
#include <asm/virtext.h> #include "trace.h" diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 70ab331077aa..87109418458a 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -41,6 +41,7 @@
#include <asm/asm.h> #include <asm/cpu.h> +#include <asm/cpu_device_id.h> #include <asm/io.h> #include <asm/desc.h> #include <asm/vmx.h> diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index c72258a44ba4..5d146b306b0b 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -47,6 +47,7 @@ #include <asm/msr.h> #include <asm/processor.h> #include <asm/cpufeature.h> +#include <asm/cpu_device_id.h>
MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski"); MODULE_DESCRIPTION("ACPI Processor P-States Driver"); diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c index 4ac7c3cf34be..0e55be99fadb 100644 --- a/drivers/cpufreq/amd_freq_sensitivity.c +++ b/drivers/cpufreq/amd_freq_sensitivity.c @@ -21,6 +21,7 @@
#include <asm/msr.h> #include <asm/cpufeature.h> +#include <asm/cpu_device_id.h>
#include "cpufreq_ondemand.h"
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 867db9b9384c..4b431bc643d9 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -631,9 +631,7 @@ struct x86_cpu_id { kernel_ulong_t driver_data; };
-#define X86_FEATURE_MATCH(x) \ - { X86_VENDOR_ANY, X86_FAMILY_ANY, X86_MODEL_ANY, x } - +/* Wild cards for x86_cpu_id::vendor, family, model and feature */ #define X86_VENDOR_ANY 0xffff #define X86_FAMILY_ANY 0 #define X86_MODEL_ANY 0