a0e1be0fd3
avc: denied { read } for comm=4E444B204D65646961436F6465635F name="system" dev="tmpfs" ino=379
scontext=u:r:system_server:s0 tcontext=u:object_r:dmabuf_system_heap_device:s0 tclass=chr_file
permissive=1 avc: denied { open } for comm=4E444B204D65646961436F6465635F
path="/dev/dma_heap/system" dev="tmpfs" ino=379 scontext=u:r:system_server:s0
tcontext=u:object_r:dmabuf_system_heap_device:s0 tclass=chr_file permissive=1 avc: denied { read }
for comm="HwBinder:413_3" name="system" dev="tmpfs" ino=379 scontext=u:r:mediaswcodec:s0
tcontext=u:object_r:dmabuf_system_heap_device:s0 tclass=chr_file permissive=0 avc: denied { ioctl }
for comm=4E444B204D65646961436F6465635F path="/dev/dma_heap/system" dev="tmpfs" ino=379
ioctlcmd=0x4800 scontext=u:r:system_server:s0 tcontext=u:object_r:dmabuf_system_heap_device:s0
tclass=chr_file permissive=1 avc: denied { read } for comm=4E444B204D65646961436F6465635F
name="system" dev="tmpfs" ino=379 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:dmabuf_system_heap_device:s0 tclass=chr_file permissive=0
app=com.android.systemui it(0.0:83): avc: denied { read } for comm=4E444B204D65646961436F6465635F
name="system" dev="tmpfs" ino=379 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:dmabuf_system_heap_device:s0 tclass=chr_file permissive=0
app=com.android.systemui
Test: video playback without denials with DMA-BUF heaps enabled
Bug: 168333162
Change-Id: If936c5561ebf891e4b687a2c18760d16e0d31275
27 lines
1007 B
Plaintext
27 lines
1007 B
Plaintext
type mediaswcodec, domain;
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type mediaswcodec_exec, system_file_type, exec_type, file_type;
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hal_server_domain(mediaswcodec, hal_codec2)
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# mediaswcodec may use an input surface from a different Codec2 service or an
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# OMX service
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hal_client_domain(mediaswcodec, hal_codec2)
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hal_client_domain(mediaswcodec, hal_omx)
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hal_client_domain(mediaswcodec, hal_allocator)
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hal_client_domain(mediaswcodec, hal_graphics_allocator)
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crash_dump_fallback(mediaswcodec)
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# mediaswcodec_server should never execute any executable without a
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# domain transition
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neverallow mediaswcodec { file_type fs_type }:file execute_no_trans;
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# Media processing code is inherently risky and thus should have limited
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# permissions and be isolated from the rest of the system and network.
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# Lengthier explanation here:
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# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
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neverallow mediaswcodec domain:{ tcp_socket udp_socket rawip_socket } *;
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allow mediaswcodec dmabuf_system_heap_device:chr_file r_file_perms;
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