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| author | Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> | 2021-03-25 08:40:55 +0200 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-03-26 17:23:41 -0400 |
| commit | 1c24094c0525a1be1ade9511f85afd367ee26555 (patch) | |
| tree | 387ea86aaffc24a7981094a3b8ac10af87be20cb | |
| parent | e0f24a3996a35e9c5d30198a75dc906ad5a64948 (diff) | |
| download | trace-cmd-stable-v2.9.tar.gz | |
trace-cmd: Read at least 8 bytes trace-id optiontrace-cmd-stable-v2.9
When reading the trace-id option from trace.dat file, check if the size
is at least 8 bytes. If the size is greater, use the first 8 bytes only
and ignore the rest. That way we can safely extend this option in the
future, without breaking the legacy logic.
Link: https://lore.kernel.org/linux-trace-devel/20210325064055.539554-24-tz.stoyanov@gmail.com
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| -rw-r--r-- | lib/trace-cmd/trace-input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c index 2093a3dc..51b96035 100644 --- a/lib/trace-cmd/trace-input.c +++ b/lib/trace-cmd/trace-input.c @@ -2666,7 +2666,7 @@ static int handle_options(struct tracecmd_input *handle) trace_pid_map_load(handle, buf); break; case TRACECMD_OPTION_TRACEID: - if (size != 8) + if (size < 8) break; handle->trace_id = tep_read_number(handle->pevent, buf, 8); |