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157a3537d6
commit 2db154b3ea8e ("vfs: syscall: Add move_mount(2) to move mounts around")
introduced a new move_mount(2) system call and a corresponding new LSM
security_move_mount hook but did not implement this hook for any
existing LSM. This creates a regression for AppArmor mediation of
mount. This patch provides a base mapping of the move_mount syscall to
the existing mount mediation. In the future we may introduce
additional mediations around the new mount calls.
Fixes: 2db154b3ea8e ("vfs: syscall: Add move_mount(2) to move mounts around")
CC: stable@vger.kernel.org
Reported-by: Andreas Steinmetz <anstein99@googlemail.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>