perf_event: Fix raw event processing
We use 'data.raw_data' parameter to call process_raw_event(),
but data.raw_data buffer not include data size. it can make perf
tool crash.
This bug was introduced by commit 180f95e29a ("perf: Make common
SAMPLE_EVENT parser").
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B1C7F45.5080105@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 7481ebd..4655e16 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1570,13 +1570,17 @@
}
static void
-process_raw_event(event_t *raw_event __used, void *more_data,
+process_raw_event(event_t *raw_event __used, u32 size, void *data,
int cpu, u64 timestamp, struct thread *thread)
{
- struct raw_event_sample *raw = more_data;
+ struct raw_event_sample *raw;
struct event *event;
int type;
+ raw = malloc_or_die(sizeof(*raw)+size);
+ raw->size = size;
+ memcpy(raw->data, data, size);
+
type = trace_parse_common_type(raw->data);
event = trace_find_event(type);
@@ -1629,7 +1633,8 @@
if (profile_cpu != -1 && profile_cpu != (int)data.cpu)
return 0;
- process_raw_event(event, data.raw_data, data.cpu, data.time, thread);
+ process_raw_event(event, data.raw_size, data.raw_data, data.cpu,
+ data.time, thread);
return 0;
}