From: David Marchand <david.marchand@redhat.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org, chenbox@nvidia.com
Subject: Re: [PATCH 1/6] vhost: fix vduse device creation error handling
Date: Wed, 23 Oct 2024 18:06:25 +0200 [thread overview]
Message-ID: <CAJFAV8wxvz9g5+q_wFA5kHHoPYtgDJ-oCVE8LU0rxvqrTvow-g@mail.gmail.com> (raw)
In-Reply-To: <20241023151552.2863387-2-maxime.coquelin@redhat.com>
On Wed, Oct 23, 2024 at 5:16 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
>
> This patch fixes missing reconnection log unmapping
> miss in the error path at VDUSE creation time.
>
> Coverity issue: 445525
> Fixes: da79cc7fda76 ("vhost: add reconnection support to VDUSE")
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
VDUSE* in the title, for consistency please.
Reviewed-by: David Marchand <david.marchand@redhat.com>
One comment below.
> ---
> lib/vhost/vduse.c | 24 +++++++++++++-----------
> 1 file changed, 13 insertions(+), 11 deletions(-)
>
> diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
> index f9ac317438..89bc29a33f 100644
> --- a/lib/vhost/vduse.c
> +++ b/lib/vhost/vduse.c
> @@ -488,7 +488,7 @@ vduse_device_create(const char *path, bool compliant_ol_flags)
> struct vduse_dev_config *dev_config = NULL;
dev_config could be allocated on the stack, rather than the heap.
But at least, move dev_config declaration in the block where it is
used, this will limit the chance a future change introduces a leak.
> const char *name = path + strlen("/dev/vduse/");
> char reconnect_file[PATH_MAX];
> - struct vhost_reconnect_data *reconnect_log = NULL;
> + struct vhost_reconnect_data *reconnect_log = MAP_FAILED;
> bool reconnect = false;
>
> if (vduse.fdset == NULL) {
--
David Marchand
next prev parent reply other threads:[~2024-10-23 16:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-23 15:15 [PATCH 0/6] VDUSE reconnection fixes and cleanup Maxime Coquelin
2024-10-23 15:15 ` [PATCH 1/6] vhost: fix vduse device creation error handling Maxime Coquelin
2024-10-23 16:06 ` David Marchand [this message]
2024-10-23 18:55 ` Maxime Coquelin
2024-10-23 15:15 ` [PATCH 2/6] vhost: fix possible TOCTOU in VDUSE dev creation Maxime Coquelin
2024-10-23 16:06 ` David Marchand
2024-10-23 15:15 ` [PATCH 3/6] vhost: fix VDUSE reconnect device start failure Maxime Coquelin
2024-10-23 16:06 ` David Marchand
2024-10-23 18:57 ` Maxime Coquelin
2024-10-23 15:15 ` [PATCH 4/6] vhost: refactor VDUSE reconnection log mapping Maxime Coquelin
2024-10-23 16:07 ` David Marchand
2024-10-23 19:04 ` Maxime Coquelin
2024-10-23 15:15 ` [PATCH 5/6] vhost: fix and refactor VDUSE reconnect log check Maxime Coquelin
2024-10-23 16:08 ` David Marchand
2024-10-23 15:15 ` [PATCH 6/6] vhost: move VDUSE reconnection after device is created Maxime Coquelin
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