Commit c9f73a3d authored by Arjan van de Ven's avatar Arjan van de Ven Committed by Peter Zijlstra
Browse files

perf: Fix stack data leak

the "reserved" field was not initialized to zero, resulting in 4 bytes
of stack data leaking to userspace....
Signed-off-by: default avatarArjan van de Ven <>
Signed-off-by: default avatarPeter Zijlstra <>
parent 9b7019ae
......@@ -2666,6 +2666,7 @@ 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)
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