Messages in this thread Patch in this message | | | Date | Wed, 28 Nov 2018 14:55:52 -0500 | From | Steven Rostedt <> | Subject | [PATCH] tools/lib/traceevent: Add sanity check to is_timestamp_in_us() |
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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 this function for the 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 3692f29fee46..c383305510b4 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -5409,7 +5409,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event_format *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
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