Re: [PATCH 32/38] trace-cmd lib: prevent memory leak in tracecmd_create_event_hook()

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On Wed,  5 Jun 2024 15:40:47 +0200
"Jerome Marchand" <jmarchan@xxxxxxxxxx> wrote:

> Free hook in the error path.
> 
> Fixes a RESOURCE_LEAK error (CWE-772)
> 
> Signed-off-by: Jerome Marchand <jmarchan@xxxxxxxxxx>
> ---
>  lib/trace-cmd/trace-hooks.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/lib/trace-cmd/trace-hooks.c b/lib/trace-cmd/trace-hooks.c
> index a58b5356..47f25fb3 100644
> --- a/lib/trace-cmd/trace-hooks.c
> +++ b/lib/trace-cmd/trace-hooks.c
> @@ -151,6 +151,7 @@ struct hook_list *tracecmd_create_event_hook(const char *arg)
>  
>  invalid_tok:
>  	tracecmd_warning("Invalid hook format '%s'", arg);

Should we also have:

	free(hook->str);

here too?

-- Steve

> +	free(hook);
>  	return NULL;
>  }
>  





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