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perf: fix stack data leak
[firefly-linux-kernel-4.4.55.git]
/
kernel
/
perf_counter.c
diff --git
a/kernel/perf_counter.c
b/kernel/perf_counter.c
index a641eb753b8cc92b664966e3a6932c595f07b111..7bc888dfd06ab890c2a55c9b3211f0785146e678 100644
(file)
--- a/
kernel/perf_counter.c
+++ b/
kernel/perf_counter.c
@@
-2665,6
+2665,7
@@
static void perf_counter_output(struct perf_counter *counter, int nmi,
header.size += sizeof(cpu_entry);
cpu_entry.cpu = raw_smp_processor_id();
+ cpu_entry.reserved = 0;
}
if (sample_type & PERF_SAMPLE_PERIOD)