Unbreakable Enterprise kernel security update

[4.1.12-124.60.1]

• xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate (Darrick J. Wong) [Orabug: 33699627] [Orabug: 33762471] {CVE-2021-4155}
• fix regression in ‘epoll: Keep a reference on files added to the check list’ (Al Viro) [Orabug: 33679854] [Orabug: 33762505] {CVE-2021-1048} {CVE-2021-1048}
• Bluetooth: fix use-after-free error in lock_sock_nested() (Wang ShaoBo) [Orabug: 33406421] {CVE-2021-3752}
• vt_kdsetmode: extend console locking (Linus Torvalds) [Orabug: 33406445] {CVE-2021-3753}
• Bluetooth: SMP: Fail if remote and local public keys are identical (Luiz Augusto von Dentz) [Orabug: 33556779] {CVE-2021-0129}
• Bluetooth: use constant time memory comparison for secret values (Jason A. Donenfeld) [Orabug: 33556779] {CVE-2021-0129}
• Bluetooth: Add bt_dev logging macros (Loic Poulain) [Orabug: 33556779] {CVE-2021-0129}
• ovl: fix missing negative dentry check in ovl_rename() (Zheng Liang) [Orabug: 33694378] {CVE-2021-20321}