CVE-2022-50040: Out-of-bounds Write

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

net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions()

If an error occurs in dsa_devlink_region_create(), then 'priv->regions' array will be accessed by negative index '-1'.

Found by Linux Verification Center (linuxtesting.org) with SVACE.