tree 9d4616d136d69bbfa0868d5afcda44045478fbab
parent 27eb6492eb83c1a7fb7908704cf47ad2be241185
author Nick Kralevich <nnk@google.com> 1487199883 -0800
committer android-build-team Robot <android-build-team-robot@google.com> 1495646663 +0000

system_server: replace sys_resource with sys_ptrace

Commit https://android.googlesource.com/kernel/common/+/f0ce0eee added
CAP_SYS_RESOURCE as a capability check which would allow access to
sensitive /proc/PID files. However, in an SELinux based world, allowing
this access causes CAP_SYS_RESOURCE to duplicate what CAP_SYS_PTRACE
(without :process ptrace) already provides.

Use CAP_SYS_PTRACE instead of CAP_SYS_RESOURCE.

Test: Device boots, functionality remains identical, no sys_resource
denials from system_server.
Bug: 34951864
Bug: 38496951
Change-Id: I04d745b436ad75ee1ebecf0a61c6891858022e34
(cherry picked from commit 448669540c0b7c22ee8b8293217818f8f92238b6)
(cherry picked from commit 3d8dde0e2e7ae6d6901ec3a708c8b891eacf1631)