In the Linux kernel, the following vulnerability has been resolved: rapidio: devices: fix missing put_device in mport_cdev_open When kfifo_alloc fails, the refcount of chdev->dev is left incremental. We should use put_device(&chdev->dev) to decrease the ref count of chdev->dev to avoid refcount leak.
https://git.kernel.org/stable/c/dfee9fe93dd34cd9d49520718f6ec2072de25e48
https://git.kernel.org/stable/c/d5b6e6eba3af11cb2a2791fa36a2524990fcde1a
https://git.kernel.org/stable/c/bb7397f6312d2cbf05e415676ed5b1655cb82a34
https://git.kernel.org/stable/c/b596242585984b5f3085aa8f7a82c65640b384b6
https://git.kernel.org/stable/c/ae57222402bea455e60cc51d2f52ce73b63b7af8
https://git.kernel.org/stable/c/a0d93aac54ce07a7cc71e90645d0cdabbda50450
https://git.kernel.org/stable/c/6e4540e0970030e140998ce8847f5f0171b5afa1
https://git.kernel.org/stable/c/53915ecc43c5139d6cdd1caa4fdc9290b9597008
https://git.kernel.org/stable/c/162433a96079bfa5ec748c486b4570f138d04fb5