6.12-stable review patch. If anyone has any objections, please let me know.
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From: Mike Christie michael.christie@oracle.com
[ Upstream commit f3f64c2eaffbc3169bbe1e5d1e897e6dacc839d1 ]
If we fail to attach to a cgroup we are leaking the id. This adds a new goto to free the id.
Fixes: 7d9896e9f6d0 ("vhost: Reintroduce kthread API and add mode selection") Signed-off-by: Mike Christie michael.christie@oracle.com Acked-by: Jason Wang jasowang@redhat.com Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Signed-off-by: Michael S. Tsirkin mst@redhat.com Message-Id: 20251101194358.13605-1-michael.christie@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/vhost/vhost.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 71604668e53f6..276dded52212c 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -798,11 +798,13 @@ static int vhost_kthread_worker_create(struct vhost_worker *worker,
ret = vhost_attach_task_to_cgroups(worker); if (ret) - goto stop_worker; + goto free_id;
worker->id = id; return 0;
+free_id: + xa_erase(&dev->worker_xa, id); stop_worker: vhost_kthread_do_stop(worker); return ret;