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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Slavomir Kaslev <kaslevs@vmware.com>,
	Tzvetomir Stoyanov <tstoyanov@vmware.com>
Subject: [PATCH 9/9] tools/lib/traceevent: Add sanity check to is_timestamp_in_us()
Date: Fri, 30 Nov 2018 10:44:12 -0500
Message-ID: <20181130154648.191316049@goodmis.org> (raw)
In-Reply-To: <20181130154403.150474900@goodmis.org>

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

This patch adds a sanity check to is_timestamp_in_us() input parameter
trace_clock. It avoids a potential segfault in case trace_clock is NULL.

Reported-by: Slavomir Kaslev <kaslevs@vmware.com>
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 892cf032a096..0923e331441e 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5451,7 +5451,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 
 static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 {
-	if (!use_trace_clock)
+	if (!trace_clock || !use_trace_clock)
 		return true;
 
 	if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
-- 
2.19.1



      parent reply index

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-30 15:44 [PATCH 0/9] tools/lib/traceevent: More udpates to make libtraceevent into a library Steven Rostedt
2018-11-30 15:44 ` [PATCH 1/9] tools/lib/traceevent: Implemented new API tep_get_ref() Steven Rostedt
2018-12-14 20:34   ` [tip:perf/core] tools lib traceevent: Implement " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:01   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 2/9] tools/lib/traceevent: Added support for pkg-config Steven Rostedt
2018-12-04  7:32   ` Namhyung Kim
2018-12-04  8:51     ` Tzvetomir Stoyanov
2018-12-04 17:27     ` Steven Rostedt
2018-12-14 20:34   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:01   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 3/9] tools/lib/traceevent: Install trace-seq.h API header file Steven Rostedt
2018-12-04  7:47   ` Namhyung Kim
2018-12-04 19:41     ` Steven Rostedt
2018-12-05 12:25       ` Jiri Olsa
2018-12-05 17:03         ` Steven Rostedt
2018-12-05 17:22           ` Jiri Olsa
2018-12-14 20:35   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:02   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 4/9] tools/lib/traceevent, tools/perf: Rename struct tep_event_format to struct tep_event Steven Rostedt
2018-12-14 20:36   ` [tip:perf/core] tools lib traceevent, perf tools: Rename 'struct tep_event_format' to 'struct tep_event' tip-bot for Tzvetomir Stoyanov
2018-12-18 14:02   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 5/9] tools/lib/traceevent: Rename tep_free_format() to tep_free_event() Steven Rostedt
2018-12-14 20:36   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:03   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 6/9] tools/perf: traceevent API cleanup, remove __tep_data2host*() Steven Rostedt
2018-12-14 20:37   ` [tip:perf/core] perf tools: " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:04   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 7/9] tools/lib/traceevent: traceevent API cleanup Steven Rostedt
2018-11-30 19:18   ` Arnaldo Carvalho de Melo
2018-11-30 19:37     ` Steven Rostedt
2018-11-30 19:55       ` Arnaldo Carvalho de Melo
2018-11-30 19:57       ` Steven Rostedt
2018-11-30 20:09     ` Steven Rostedt
2018-11-30 20:16       ` Arnaldo Carvalho de Melo
2018-12-03 10:42         ` Arnaldo Carvalho de Melo
2018-12-14 20:37   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
2018-12-18 14:04   ` tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` [PATCH 8/9] tools/lib/traceevent: Introduce new libtracevent API: tep_override_comm() Steven Rostedt
2019-01-08 13:35   ` Arnaldo Carvalho de Melo
2019-01-09  7:12   ` [tip:perf/urgent] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
2018-11-30 15:44 ` Steven Rostedt [this message]

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