Re: [Qemu-trivial] [PATCH] qemu-sockets: Fix potential memory leak

[Stefan Weil <sw@weilnetz.de>]

Am 01.09.2012 09:40, schrieb Stefan Weil:
> The old code leaks variable 'peer'.
>
> Signed-off-by: Stefan Weil<sw@weilnetz.de>
> ---
>   qemu-sockets.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> Report from smatch:
> qemu-sockets.c:404 inet_dgram_opts(101) warn: variable dereferenced before check 'peer' (see line 401)
>
> It looks like this warning does not make sense, but nevertheless
> it helped me to discover the leak.
>
> Regards,
> Stefan Weil
>
> diff --git a/qemu-sockets.c b/qemu-sockets.c
> index 361d890..037775b 100644
> --- a/qemu-sockets.c
> +++ b/qemu-sockets.c
> @@ -353,7 +353,7 @@ int inet_dgram_opts(QemuOpts *opts)
>       if (0 != (rc = getaddrinfo(addr, port,&ai,&local))) {
>           fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
>                   gai_strerror(rc));
> -        return -1;
> +        goto err;
>       }
>
>       /* create socket */


Ping? That code is from 2009, so the patch could also be applied
to stable (even if the chance of getting that leak is small).

Regards

Stefan Weil