linux-kernel - Re: [PATCH] perf script: Fix memory leaks in list

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Date:   Mon, 22 Apr 2019 10:14:11 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf script: Fix memory leaks in list_scripts()

Hi all,

Friendly ping:

Who can take this?

Thanks

On 4/8/19 11:27 AM, Gustavo A. R. Silva wrote:
> In case memory resources for *buf* and *paths* were allocated,
> jump to *out* and release them before return.
> 
> Addresses-Coverity-ID: 1444328 ("Resource leak")
> Fixes: 6f3da20e151f ("perf report: Support builtin perf script in scripts menu")
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>  tools/perf/ui/browsers/scripts.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
> index 27cf3ab88d13..f4edb18f67ec 100644
> --- a/tools/perf/ui/browsers/scripts.c
> +++ b/tools/perf/ui/browsers/scripts.c
> @@ -131,8 +131,10 @@ static int list_scripts(char *script_name, bool *custom,
>  		int key = ui_browser__input_window("perf script command",
>  				"Enter perf script command line (without perf script prefix)",
>  				script_args, "", 0);
> -		if (key != K_ENTER)
> -			return -1;
> +		if (key != K_ENTER) {
> +			ret = -1;
> +			goto out;
> +		}
>  		sprintf(script_name, "%s script %s", perf, script_args);
>  	} else if (choice < num + max_std) {
>  		strcpy(script_name, paths[choice]);
>