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vhost-user-scsi: Fix memleaks in vus_proc_req()

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The 'elem' is allocated memory in vu_queue_pop(), and its memory should be
freed in all error branches after vu_queue_pop().
In addition, in order to free the 'elem' memory outside of while(1) loop, move
the definition of 'elem' to the beginning of vus_proc_req().

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20201125013055.34147-1-alex.chen@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Alex Chen 2020-11-25 01:30:55 +00:00 committed by Michael S. Tsirkin
parent 553032db17
commit 81ee17aa46
1 changed files with 2 additions and 1 deletions
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3
contrib/vhost-user-scsi/vhost-user-scsi.c
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@ -232,6 +232,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
VugDev *gdev;
VusDev *vdev_scsi;
VuVirtq *vq;
VuVirtqElement *elem = NULL;
assert(vu_dev);
@ -248,7 +249,6 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
g_debug("Got kicked on vq[%d]@%p", idx, vq);
while (1) {
VuVirtqElement *elem;
VirtIOSCSICmdReq *req;
VirtIOSCSICmdResp *rsp;
@ -288,6 +288,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
free(elem);
}
free(elem);
}
static void vus_queue_set_started(VuDev *vu_dev, int idx, bool started)