From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Ian Rogers irogers@google.com
commit 137a5258939aca56558f3a23eb229b9c4b293917 upstream.
Issue detected by address sanitizer.
Fixes: cd4ceb63438e9e28 ("perf util: Save pid-cmdline mapping into tracing header") Signed-off-by: Ian Rogers irogers@google.com Acked-by: Namhyung Kim namhyung@kernel.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Mark Rutland mark.rutland@arm.com Cc: Peter Zijlstra peterz@infradead.org Cc: Stephane Eranian eranian@google.com Link: http://lore.kernel.org/lkml/20210226221431.1985458-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/perf/util/trace-event-read.c | 1 + 1 file changed, 1 insertion(+)
--- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -381,6 +381,7 @@ static int read_saved_cmdline(struct tep pr_debug("error reading saved cmdlines\n"); goto out; } + buf[ret] = '\0';
parse_saved_cmdline(pevent, buf, size); ret = 0;