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| author | Ian Rogers <irogers@google.com> | 2021-02-26 14:14:31 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-06 16:54:26 -0300 |
| commit | 137a5258939aca56558f3a23eb229b9c4b293917 (patch) | |
| tree | dc4f8f724b8c8b3221b7571a4995174db3f55875 | |
| parent | 394e4306b093d037bddcee7e1f0e8e6c53a558fc (diff) | |
| download | linux-137a5258939aca56558f3a23eb229b9c4b293917.tar.gz | |
perf traceevent: Ensure read cmdlines are null terminated.
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>
| -rw-r--r-- | tools/perf/util/trace-event-read.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index f507dff713c9f..8a01af783310a 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -361,6 +361,7 @@ static int read_saved_cmdline(struct tep_handle *pevent) pr_debug("error reading saved cmdlines\n"); goto out; } + buf[ret] = '\0'; parse_saved_cmdline(pevent, buf, size); ret = 0; |