Messages in this thread Patch in this message | | | From | Robert Richter <> | Subject | [PATCH 1/4] perf tools: Fix uninitialized memory access to struct perf_sample | Date | Thu, 15 Dec 2011 17:32:39 +0100 |
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Memory in struct perf_sample is not fully initialized during parsing. Depending on sampling data some parts may left unchanged. Zero out struct perf_sample first to avoid access to uninitialized memory.
Signed-off-by: Robert Richter <robert.richter@amd.com> --- tools/perf/util/evsel.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 4a8c8b0..ac115ba 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -457,7 +457,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type, u32 val32[2]; } u; - + memset(data, 0, sizeof(*data)); data->cpu = data->pid = data->tid = -1; data->stream_id = data->id = data->time = -1ULL; -- 1.7.7
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