[Bug 2059278] Re: glibc: apparmor userns mitigation breaks test suite (again)

[Simon Chopin]

** Tags removed: update-excuse

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Title:
  glibc: apparmor userns mitigation breaks test suite (again)

Status in glibc package in Ubuntu:
  Fix Committed

Bug description:
  The latest policy on apparmor vs userns isn't to reject the namespace
  creation outright but rather to deny all capabilities within that
  namespace.

  That breaks the glibc testsuite, again, because our patch only takes
  the former policy into account, and so all tests that use test-
  container or some ad-hoc code to create a userns will fail any time
  they try to do something interesting, e.g.:

  2722s FAIL: elf/tst-glibc-hwcaps-cache
  2722s original exit status 1
  2722s error: test-container.c:1136: could not create a private mount namespace
  2722s

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