In the Linux kernel, the following vulnerability has been resolved:

uio_hv_generic: Fix another memory leak in error handling paths

Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probe
function is never freed in the error handling path.

Add the missing 'vmbus_free_ring()' call.

Note that it is already freed in the .remove function.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-47070
• https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df
• https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07