Re: [PATCH 6/8] perf buildid cache: Fix -a segfault

From: Arnaldo Carvalho de Melo
Date: Fri Dec 05 2014 - 10:31:15 EST


Em Mon, Dec 01, 2014 at 08:06:27PM +0100, Jiri Olsa escreveu:
> The kcore_filename is uninitialized and trash value could
> trigger build_id_cache__add_kcore function ending up with
> segfault.

Applied

> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
> Cc: David Ahern <dsahern@xxxxxxxxx>
> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
> Cc: Paul Mackerras <paulus@xxxxxxxxx>
> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> Cc: Stephane Eranian <eranian@xxxxxxxxxx>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
> ---
> tools/perf/builtin-buildid-cache.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
> index 184955ec8a83..7a3504a1b494 100644
> --- a/tools/perf/builtin-buildid-cache.c
> +++ b/tools/perf/builtin-buildid-cache.c
> @@ -737,7 +737,7 @@ int cmd_buildid_cache(int argc, const char **argv,
> *remove_name_list_str = NULL,
> *missing_filename = NULL,
> *update_name_list_str = NULL,
> - *kcore_filename;
> + *kcore_filename = NULL;
> char sbuf[STRERR_BUFSIZE];
>
> struct perf_data_file file = {
> --
> 1.9.3
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