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authorRobert Richter <robert.richter@amd.com>2011-12-15 17:32:39 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-12-20 13:26:47 -0200
commitf3bda2c9a689b38c059f7cb2d761ff58a2996370 (patch)
treedd3962fd82b6cb5e6b8a87a0ba9dbb90c36a7c68 /tools/perf
parent3e76ac78b08479e84a3eca3fb1b3066fb8230461 (diff)
downloadlinux-linaro-stable-f3bda2c9a689b38c059f7cb2d761ff58a2996370.tar.gz
perf evsel: Fix uninitialized memory access to struct perf_sample
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. Cc: Ingo Molnar <mingo@elte.hu> Link: http://lkml.kernel.org/r/1323966762-8574-2-git-send-email-robert.richter@amd.com Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/evsel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 60ad0286759e..667f3b78bb2c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -460,7 +460,7 @@ 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;