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by stusmall 4315 days ago
I've seen /proc permissions from version to version. For example the available of /proc/last_kmsg changed at some point. In kitkat its only available to UID system and apps with android.permission.READ_LOGS[1]. Not sure exactly when this changed but this line wasn't present in 4.1.2.

1. https://android.googlesource.com/platform/system/core/+/mast... line 218