c4ef363006
Added access to proc_uptime and proc_asound to address these denials:
avc: denied { read } for name="uptime" dev="proc" ino=4026532080
scontext=u:r:shell:s0 tcontext=u:object_r:proc_uptime:s0 tclass=file
permissive=1
avc: denied { getattr } for path="/proc/asound/version" dev="proc"
ino=4026532017 scontext=u:r:shell:s0 tcontext=u:object_r:proc_asound:s0
tclass=file permissive=1
Bug: 65643247
Test: device boots with no denial from 'shell' domain.
Test: lsmod, ps, top, netstat
Test: No denials triggered from CtsSecurityHostTestCases
Test: external/toybox/run-tests-on-android.sh does not pass, but triggers
no denials from 'shell' domain to 'proc' type.
Change-Id: Ia4c26fd616e33e5962c6707a855dc24e338ec153
127 lines
2.3 KiB
Text
127 lines
2.3 KiB
Text
# Transition to crash_dump when /system/bin/crash_dump* is executed.
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# This occurs when the process crashes.
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domain_auto_trans(domain, crash_dump_exec, crash_dump);
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allow domain crash_dump:process sigchld;
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# Limit ability to ptrace or read sensitive /proc/pid files of processes
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# with other UIDs to these whitelisted domains.
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neverallow {
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domain
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-vold
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-dumpstate
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-storaged
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-system_server
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userdebug_or_eng(`-perfprofd')
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} self:capability sys_ptrace;
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# Limit ability to generate hardware unique device ID attestations to priv_apps
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neverallow { domain -priv_app } *:keystore_key gen_unique_id;
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# Core domains are not permitted to use kernel interfaces which are not
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# explicitly labeled.
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# TODO(b/65643247): Apply these neverallow rules to all coredomain.
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full_treble_only(`
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# /proc
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neverallow {
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coredomain
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-dumpstate
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-platform_app
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-priv_app
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-system_app
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-vold
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-vendor_init
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} proc:file no_rw_file_perms;
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# /sys
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neverallow {
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coredomain
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-charger
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-dumpstate
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-healthd
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-init
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-priv_app
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-storaged
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-system_app
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-ueventd
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-vold
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-vendor_init
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} sysfs:file no_rw_file_perms;
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# /dev
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neverallow {
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coredomain
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-fsck
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-init
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-shell
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-ueventd
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-vendor_init
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} device:{ blk_file file } no_rw_file_perms;
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# debugfs
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neverallow {
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coredomain
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-dumpstate
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-init
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-system_server
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-vendor_init
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} debugfs:file no_rw_file_perms;
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# tracefs
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neverallow {
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coredomain
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userdebug_or_eng(`-atrace')
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-dumpstate
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-init
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-perfprofd
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-shell
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-vendor_init
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} debugfs_tracing:file no_rw_file_perms;
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# inotifyfs
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neverallow {
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coredomain
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-init
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-vendor_init
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} inotify:file no_rw_file_perms;
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# pstorefs
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neverallow {
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coredomain
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-bootstat
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-charger
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-dumpstate
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-healthd
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-init
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-logd
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-logpersist
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-recovery_persist
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-recovery_refresh
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-shell
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-system_server
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-vendor_init
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} pstorefs:file no_rw_file_perms;
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# configfs
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neverallow {
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coredomain
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-init
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-system_server
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-vendor_init
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} configfs:file no_rw_file_perms;
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# functionfs
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neverallow {
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coredomain
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-adbd
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-init
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-mediaprovider
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-vendor_init
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}functionfs:file no_rw_file_perms;
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# usbfs and binfmt_miscfs
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neverallow {
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coredomain
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-init
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-vendor_init
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}{ usbfs binfmt_miscfs }:file no_rw_file_perms;
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')
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