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.
https://git.kernel.org/stable/c/407d09a22f3f685fd634aa5d05840c64b23bfebc
https://git.kernel.org/stable/c/3e3876d322aef82416ecc496a4d4a587e0fdf7a3