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Tsirkin" To: qemu-devel@nongnu.org Subject: [PULL 1/3] libvhost-user: Zero memory allocated for VuVirtqInflightDesc Message-ID: <20191120095904.11384-2-mst@redhat.com> References: <20191120095904.11384-1-mst@redhat.com> MIME-Version: 1.0 In-Reply-To: <20191120095904.11384-1-mst@redhat.com> X-Mailer: git-send-email 2.22.0.678.g13338e74b8 X-Mutt-Fcc: =sent X-MC-Unique: 65zqoU0HPuKmRQV__Ywj3w-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Xie Yongji , Zhang Yu , Gerd Hoffmann , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Xie Yongji Use a zero-initialized VuVirtqInflightDesc struct to avoid that scan-build reports that vq->resubmit_list[0].counter may be garbage value in vu_check_queue_inflights(). Fixes: 5f9ff1eff ("libvhost-user: Support tracking inflight I/O in shared memory") Reported-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Xie Yongji Message-Id: <20191119075759.4334-1-xieyongji@baidu.com> Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- contrib/libvhost-user/libvhost-user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/= libvhost-user.c index 68c27136ae..ec27b78ff1 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -992,7 +992,7 @@ vu_check_queue_inflights(VuDev *dev, VuVirtq *vq) vq->shadow_avail_idx =3D vq->last_avail_idx =3D vq->inuse + vq->used_i= dx; =20 if (vq->inuse) { - vq->resubmit_list =3D malloc(sizeof(VuVirtqInflightDesc) * vq->inu= se); + vq->resubmit_list =3D calloc(vq->inuse, sizeof(VuVirtqInflightDesc= )); if (!vq->resubmit_list) { return -1; } --=20 MST