perf inject: Fix missing free in copy_kcore_dir()

[PATCH] perf inject: Fix missing free in copy_kcore_dir()

Posted by Adrian Hunter 3 years, 10 months ago

Free string allocated by asprintf().

Fixes: d8fc08550929bb ("perf inject: Keep a copy of kcore_dir")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 tools/perf/builtin-inject.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 42e2918fd1cc..fee9da14afc6 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -891,7 +891,9 @@ static int copy_kcore_dir(struct perf_inject *inject)
 	if (ret < 0)
 		return ret;
 	pr_debug("%s\n", cmd);
-	return system(cmd);
+	ret = system(cmd);
+	free(cmd);
+	return ret;
 }
 
 static int output_fd(struct perf_inject *inject)
-- 
2.25.1

Re: [PATCH] perf inject: Fix missing free in copy_kcore_dir()

Posted by Arnaldo Carvalho de Melo 3 years, 10 months ago

Em Mon, Jun 20, 2022 at 01:39:04PM +0300, Adrian Hunter escreveu:
> Free string allocated by asprintf().
> 
> Fixes: d8fc08550929bb ("perf inject: Keep a copy of kcore_dir")
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>

Thanks, applied.

- Arnaldo

> ---
>  tools/perf/builtin-inject.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
> index 42e2918fd1cc..fee9da14afc6 100644
> --- a/tools/perf/builtin-inject.c
> +++ b/tools/perf/builtin-inject.c
> @@ -891,7 +891,9 @@ static int copy_kcore_dir(struct perf_inject *inject)
>  	if (ret < 0)
>  		return ret;
>  	pr_debug("%s\n", cmd);
> -	return system(cmd);
> +	ret = system(cmd);
> +	free(cmd);
> +	return ret;
>  }
>  
>  static int output_fd(struct perf_inject *inject)
> -- 
> 2.25.1

-- 

- Arnaldo