Commit 137a5258 authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
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perf traceevent: Ensure read cmdlines are null terminated. 



Issue detected by address sanitizer.

Fixes: cd4ceb63 ("perf util: Save pid-cmdline mapping into tracing header")
Signed-off-by: default avatarIan Rogers <irogers@google.com>
Acked-by: default avatarNamhyung 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 394e4306

tools/perf/util/trace-event-read.c

+1 −0
Original line number Diff line number Diff line
@@ -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;