Questions about the MLS to "read down"

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Hi, all

I have the following denials. But from my understanding, the reading-down rule is not violated according to the scontext and tcontext. Could you help to explain why? Thanks. 

<5>[15423.456451] type=1400 audit(1342836229.562:2241): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=127269 scontext=u:r:release_app:s0:c42 tcontext=u:r:shared_app:s0:c16 tclass=lnk_file
<5>[15423.807434] type=1400 audit(1342836229.914:2242): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=129294 scontext=u:r:release_app:s0:c42 tcontext=u:r:shared_app:s0:c17 tclass=lnk_file
<5>[15423.963287] type=1400 audit(1342836230.070:2243): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=130190 scontext=u:r:release_app:s0:c42 tcontext=u:r:shared_app:s0:c0 tclass=lnk_file
<5>[15424.055236] type=1400 audit(1342836230.164:2244): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=130739 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c35 tclass=lnk_file
<5>[15424.145263] type=1400 audit(1342836230.250:2245): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=131183 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c36 tclass=lnk_file
<5>[15424.224792] type=1400 audit(1342836230.328:2246): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=131613 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c34 tclass=lnk_file
<5>[15424.290008] type=1400 audit(1342836230.398:2247): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=131971 scontext=u:r:release_app:s0:c42 tcontext=u:r:platform_app:s0:c9 tclass=lnk_file
<5>[15424.409912] type=1400 audit(1342836230.515:2248): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=132511 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c14 tclass=lnk_file
<5>[15424.477813] type=1400 audit(1342836230.585:2249): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=132869 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c22 tclass=lnk_file
<5>[15424.548034] type=1400 audit(1342836230.656:2250): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=133227 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c25 tclass=lnk_file
<5>[15424.613525] type=1400 audit(1342836230.718:2251): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=133585 scontext=u:r:release_app:s0:c42 tcontext=u:r:shared_app:s0:c28 tclass=lnk_file
<5>[15424.797546] type=1400 audit(1342836230.906:2252): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=134474 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c38 tclass=lnk_file
<5>[15425.225646] type=1400 audit(1342836231.335:2253): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=136217 scontext=u:r:release_app:s0:c42 tcontext=u:r:platform_app:s0:c19 tclass=lnk_file
<5>[15425.354034] type=1400 audit(1342836231.460:2254): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=136878 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c5 tclass=lnk_file
<5>[15425.443725] type=1400 audit(1342836231.546:2255): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=137392 scontext=u:r:release_app:s0:c42 tcontext=u:r:release_app:s0:c6 tclass=lnk_file
<5>[15425.521240] type=1400 audit(1342836231.625:2256): avc:  denied  { read } for  pid=2589 comm="ationTestRunner" name="cwd" dev=proc ino=137823 scontext=u:r:release_app:s0:c42 tcontext=u:r:media_app:s0:c11 tclass=lnk_file


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Haiqing Jiang, PH.D student

Computer Science Department, North Carolina State University



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