From: Patrick MacArthur <patrick@patrickmacarthur.net>
To: Kuba Kozak <kubax.kozak@intel.com>, anatoly.burakov@intel.com
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH] vfio: fix close unchecked file descriptor
Date: Wed, 20 Sep 2017 10:34:54 -0400 [thread overview]
Message-ID: <d802da7a-551b-f44e-6aa0-3fb75418ba23@patrickmacarthur.net> (raw)
In-Reply-To: <1505901573-463-1-git-send-email-kubax.kozak@intel.com>
On 09/20/2017 05:59 AM, Kuba Kozak wrote:
> Add file descriptor value check before calling close() function.
>
> Coverity issue: 141297
> Fixes: 811b6b25060f ("vfio: fix file descriptor leak in multi-process")
> Cc: patrick@patrickmacarthur.net
> Cc: stable@dpdk.org
>
> Signed-off-by: Kuba Kozak <kubax.kozak@intel.com>
> ---
> lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c b/lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c
> index 7e8095c..c04f548 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c
> @@ -301,7 +301,8 @@ vfio_mp_sync_thread(void __rte_unused * arg)
> vfio_mp_sync_send_request(conn_sock, SOCKET_ERR);
> else
> vfio_mp_sync_send_fd(conn_sock, fd);
> - close(fd);
> + if (fd != -1)
> + close(fd);
IMHO this should be:
if (fd >= 0)
What specifically is Coverity complaining about here? Is there a
specific code path that leads to fd being -1 here?
Thanks,
Patrick MacArthur
next prev parent reply other threads:[~2017-09-20 14:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 9:59 Kuba Kozak
2017-09-20 10:15 ` Burakov, Anatoly
2017-09-20 14:34 ` Patrick MacArthur [this message]
2017-09-20 14:39 ` Burakov, Anatoly
2017-09-21 2:28 ` Patrick MacArthur
2017-09-21 9:49 ` Kozak, KubaX
2017-09-21 13:49 ` [dpdk-stable] [PATCH v2] " Michal Jastrzebski
2017-09-21 16:07 ` Patrick MacArthur
2017-10-05 21:42 ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
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