diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0020-perf-x86-Fix-possible-Spectre-v1-indexing-for-x86_pm.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0020-perf-x86-Fix-possible-Spectre-v1-indexing-for-x86_pm.patch | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0020-perf-x86-Fix-possible-Spectre-v1-indexing-for-x86_pm.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0020-perf-x86-Fix-possible-Spectre-v1-indexing-for-x86_pm.patch deleted file mode 100644 index c4c48d56..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0020-perf-x86-Fix-possible-Spectre-v1-indexing-for-x86_pm.patch +++ /dev/null @@ -1,59 +0,0 @@ -From faf22307f64c353212c5c132f45f5e7414cea4bf Mon Sep 17 00:00:00 2001 -From: Peter Zijlstra <peterz@infradead.org> -Date: Fri, 20 Apr 2018 14:08:58 +0200 -Subject: [PATCH 20/93] perf/x86: Fix possible Spectre-v1 indexing for - x86_pmu::event_map() - -commit 46b1b577229a091b137831becaa0fae8690ee15a upstream. - -> arch/x86/events/intel/cstate.c:307 cstate_pmu_event_init() warn: potential spectre issue 'pkg_msr' (local cap) -> arch/x86/events/intel/core.c:337 intel_pmu_event_map() warn: potential spectre issue 'intel_perfmon_event_map' -> arch/x86/events/intel/knc.c:122 knc_pmu_event_map() warn: potential spectre issue 'knc_perfmon_event_map' -> arch/x86/events/intel/p4.c:722 p4_pmu_event_map() warn: potential spectre issue 'p4_general_events' -> arch/x86/events/intel/p6.c:116 p6_pmu_event_map() warn: potential spectre issue 'p6_perfmon_event_map' -> arch/x86/events/amd/core.c:132 amd_pmu_event_map() warn: potential spectre issue 'amd_perfmon_event_map' - -Userspace controls @attr, sanitize @attr->config before passing it on -to x86_pmu::event_map(). - -Reported-by: Dan Carpenter <dan.carpenter@oracle.com> -Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> -Cc: <stable@kernel.org> -Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> -Cc: Arnaldo Carvalho de Melo <acme@redhat.com> -Cc: Jiri Olsa <jolsa@redhat.com> -Cc: Linus Torvalds <torvalds@linux-foundation.org> -Cc: Peter Zijlstra <peterz@infradead.org> -Cc: Stephane Eranian <eranian@google.com> -Cc: Thomas Gleixner <tglx@linutronix.de> -Cc: Vince Weaver <vincent.weaver@maine.edu> -Signed-off-by: Ingo Molnar <mingo@kernel.org> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - arch/x86/events/core.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c -index 6b955e3..d36ada3 100644 ---- a/arch/x86/events/core.c -+++ b/arch/x86/events/core.c -@@ -26,6 +26,7 @@ - #include <linux/cpu.h> - #include <linux/bitops.h> - #include <linux/device.h> -+#include <linux/nospec.h> - - #include <asm/apic.h> - #include <asm/stacktrace.h> -@@ -423,6 +424,8 @@ int x86_setup_perfctr(struct perf_event *event) - if (attr->config >= x86_pmu.max_events) - return -EINVAL; - -+ attr->config = array_index_nospec((unsigned long)attr->config, x86_pmu.max_events); -+ - /* - * The generic map: - */ --- -2.7.4 - |