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| author |   Ian Rogers <irogers@google.com> | 2021-02-26 14:14:31 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 17:03:37 +0100 |
| commit | 4d0273ab0a796cd1a3b888f47e53a6a75171bd8e (patch) | |
| tree | b851613a81a9bd651936aeb9fcf45dd2f654ff68 /tools | |
| parent | selftests: forwarding: Fix race condition in mirror installation (diff) | |
| download | wireguard-linux-4d0273ab0a796cd1a3b888f47e53a6a75171bd8e.tar.xz wireguard-linux-4d0273ab0a796cd1a3b888f47e53a6a75171bd8e.zip | |
perf traceevent: Ensure read cmdlines are null terminated.
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>
Diffstat (limited to 'tools')
| -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 8593d3c200c6..0116b0c06e97 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; |