e6a7b37d4c
Label /proc/sys/vm/mmap_min_addr with proc_security to prevent writing it by any domain other than init. Also remove memprotect mmap_zero permission from unconfineddomain so that it cannot pass the SELinux check over mapping low memory. Change-Id: Idc189feeb325a4aea26c93396fd0fa7225e79586 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
43 lines
2.2 KiB
Plaintext
43 lines
2.2 KiB
Plaintext
#######################################################
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#
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# This is the unconfined template. This template is the base policy
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# which is used by daemons and other privileged components of
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# Android.
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#
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# Historically, this template was called "unconfined" because it
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# allowed the domain to do anything it wanted. Over time,
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# this has changed, and will continue to change in the future.
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# The rules in this file will be removed when no remaining
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# unconfined domains require it, or when the rules contradict
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# Android security best practices. Domains which need rules not
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# provided by the unconfined template should add them directly to
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# the relevant policy.
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#
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# The use of this template is discouraged.
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######################################################
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allow unconfineddomain self:capability_class_set *;
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allow unconfineddomain kernel:security ~{ load_policy setenforce };
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allow unconfineddomain kernel:system *;
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allow unconfineddomain domain:process ~ptrace;
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allow unconfineddomain domain:fd *;
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allow unconfineddomain domain:dir r_dir_perms;
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allow unconfineddomain domain:lnk_file r_file_perms;
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allow unconfineddomain domain:{ fifo_file file } rw_file_perms;
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allow unconfineddomain domain:socket_class_set *;
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allow unconfineddomain domain:ipc_class_set *;
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allow unconfineddomain domain:key *;
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allow unconfineddomain fs_type:filesystem *;
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allow unconfineddomain {fs_type dev_type file_type}:{ dir blk_file lnk_file sock_file fifo_file } ~relabelto;
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allow unconfineddomain {fs_type -usermodehelper -proc_security}:{ chr_file file } ~{entrypoint relabelto};
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allow unconfineddomain {dev_type -kmem_device}:{ chr_file file } ~{entrypoint relabelto};
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allow unconfineddomain file_type:{ chr_file file } ~{entrypoint relabelto};
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allow unconfineddomain node_type:node *;
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allow unconfineddomain node_type:{ tcp_socket udp_socket rawip_socket } node_bind;
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allow unconfineddomain netif_type:netif *;
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allow unconfineddomain port_type:socket_class_set name_bind;
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allow unconfineddomain port_type:{ tcp_socket dccp_socket } name_connect;
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allow unconfineddomain domain:peer recv;
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allow unconfineddomain domain:binder { call transfer set_context_mgr };
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allow unconfineddomain property_type:property_service set;
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