perf_data__switch() may not assign a legal value to 'new_filename'.
In this case, 'new_filename' uses the on-stack value, which may cause a
incorrect free and unexpected result.
Fixes: 03724b2e9c45 ("perf record: Allow to limit number of reported perf.data files")
Signed-off-by: Yang Jihong <[email protected]>
---
tools/perf/builtin-record.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 91e6828c38cc..fb8d4067b76c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1830,8 +1830,8 @@ static int
record__switch_output(struct record *rec, bool at_exit)
{
struct perf_data *data = &rec->data;
+ char *new_filename = NULL;
int fd, err;
- char *new_filename;
/* Same Size: "2015122520103046"*/
char timestamp[] = "InvalidTimestamp";
--
2.34.1