[PATCH] perf jevents: Fix suspicious code in fixregex()

[Namhyung Kim]

The new string should have enough space for the original string and
the back slashes IMHO.

Cc: John Garry <john.ga...@huawei.com>
Cc: Kajol Jain <kj...@linux.ibm.com>
Cc: Ian Rogers <irog...@google.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
 tools/perf/pmu-events/jevents.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index fa86c5f997cc..fc9c158bfa13 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -137,7 +137,7 @@ static char *fixregex(char *s)
                return s;
 
        /* allocate space for a new string */
-       fixed = (char *) malloc(len + 1);
+       fixed = (char *) malloc(len + esc_count + 1);
        if (!fixed)
                return NULL;
 
-- 
2.28.0.402.g5ffc5be6b7-goog