tag a580a70135836b51bf24af1901aa37372762b89f
tagger The Android Open Source Project <initial-contribution@android.com> Wed Jan 31 14:13:06 2018 -0800
object 621c7faff5de2868f76608ab2740ef5753fd4bbb

Android Wear 8.0.0 Release 0.6

commit 621c7faff5de2868f76608ab2740ef5753fd4bbb
author Janis Danisevskis <jdanis@google.com> Thu Apr 14 13:57:03 2016 +0100
committer Alain Vongsouvanh <alainv@google.com> Tue Nov 14 09:53:34 2017 -0800
tree 548d686726468ba271450b6097869659b2c7bdcc
parent 4e5ac60fc25120e7ec41a69d47a0473b141fe56e

UPSTREAM: procfs: fixes pthread cross-thread naming if !PR_DUMPABLE

The PR_DUMPABLE flag causes the pid related paths of the
proc file system to be owned by ROOT. The implementation
of pthread_set/getname_np however needs access to
/proc/<pid>/task/<tid>/comm.
If PR_DUMPABLE is false this implementation is locked out.

This patch installs a special permission function for
the file "comm" that grants read and write access to
all threads of the same group regardless of the ownership
of the inode. For all other threads the function falls back
to the generic inode permission check.

Change-Id: I219b0d24be366cc33f56546f6809455d7b11e3fc
Signed-off-by: Janis Danisevskis <jdanis@google.com>