Merge tag '5.1-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb3 fixes from Steve French:
 "Five small SMB3 fixes, all also for stable - an important fix for an
  oplock (lease) bug, a handle leak, and three bugs spotted by KASAN"

* tag '5.1-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: keep FileInfo handle live during oplock break
  cifs: fix handle leak in smb2_query_symlink()
  cifs: Fix lease buffer length error
  cifs: Fix use-after-free in SMB2_read
  cifs: Fix use-after-free in SMB2_write