[4.1.12-124.59.1.2] - fix regression in "epoll: Keep a reference on files added to the check list" [Orabug: 33679854] {CVE-2021-1048} - fget: check that the fd still exists after getting a ref to it [Orabug: 33679806] {CVE-2021-0920} - fs: add fget_many and fput_many [Orabug: 33679806] - af_unix: fix garbage collect vs MSG_PEEK [Orabug: 33679806] {CVE-2021-0920} - net: split out functions related to registering inflight socket files [Orabug: 33679806] [4.1.12-124.59.1.1] - xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate [Orabug: 33703630] {CVE-2021-4155}