CVE-2022-49057

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

block: null_blk: end timed out poll request

When poll request is timed out, it is removed from the poll list, but not completed, so the request is leaked, and never get chance to complete.

Fix the issue by ending it in timeout handler.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.