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-rw-r--r--tools/perf/util/session.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index fff66741f18d..948327d9e92b 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -97,6 +97,7 @@ out:
void perf_session__update_sample_type(struct perf_session *self)
{
self->sample_type = perf_evlist__sample_type(self->evlist);
+ self->sample_size = perf_sample_size(self->sample_type);
self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
perf_session__id_header_size(self);
}
@@ -479,6 +480,7 @@ static void flush_sample_queue(struct perf_session *s,
struct perf_sample sample;
u64 limit = os->next_flush;
u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL;
+ int ret;
if (!ops->ordered_samples || !limit)
return;
@@ -487,9 +489,12 @@ static void flush_sample_queue(struct perf_session *s,
if (iter->timestamp > limit)
break;
- perf_session__parse_sample(s, iter->event, &sample);
- perf_session_deliver_event(s, iter->event, &sample, ops,
- iter->file_offset);
+ ret = perf_session__parse_sample(s, iter->event, &sample);
+ if (ret)
+ pr_err("Can't parse sample, err = %d\n", ret);
+ else
+ perf_session_deliver_event(s, iter->event, &sample, ops,
+ iter->file_offset);
os->last_flush = iter->timestamp;
list_del(&iter->list);
@@ -805,7 +810,9 @@ static int perf_session__process_event(struct perf_session *session,
/*
* For all kernel events we get the sample data
*/
- perf_session__parse_sample(session, event, &sample);
+ ret = perf_session__parse_sample(session, event, &sample);
+ if (ret)
+ return ret;
/* Preprocess sample records - precheck callchains */
if (perf_session__preprocess_sample(session, event, &sample))
@@ -1007,13 +1014,17 @@ remap:
file_pos = file_offset + head;
more:
+ /*
+ * Ensure we have enough space remaining to read
+ * the size of the event in the headers.
+ */
+ if (head + sizeof(event->header) > mmap_size)
+ goto remap;
+
event = (union perf_event *)(buf + head);
if (session->header.needs_swap)
perf_event_header__bswap(&event->header);
- size = event->header.size;
- if (size == 0)
- size = 8;
if (head + event->header.size > mmap_size) {
if (mmaps[map_idx]) {