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

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Date:	Fri, 5 Dec 2014 13:30:53 -0200
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Jiri Olsa <jolsa@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stephane Eranian <eranian@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 6/8] perf buildid cache: Fix -a segfault

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@...hat.com>
> Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> Cc: David Ahern <dsahern@...il.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Ingo Molnar <mingo@...nel.org>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Stephane Eranian <eranian@...gle.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---
>  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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