Public bug reported:

Ubuntu 4.11.0-8.13-generic

This test case failed on both of our testing node archytas and michael

 FAIL: test_061_guard_page (__main__.KernelSecurityTest)
 Userspace stack guard page exists (CVE-2010-2240)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
 File "./test-kernel-security.py", line 512, in test_061_guard_page
 self.assertShellExitIn(expected_signals, ["./guard-page"])
 File 
"/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py",
 line 1139, in assertShellExitIn
 self.assertIn(rc, expected, msg + result + report)
 AssertionError: Got exit code 0, expected one of -11, -7
 Command: './guard-page'
 Output:
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 Target: 0x7fff03e6e000
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 7fff03e6f000-7fff03e90000 rw-p 00000000 00:00 0 [stack]
 Unexpectedly survived stack crash into mapped segment

Full log: http://pastebin.ubuntu.com/24923862/

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1699751

Title:
  test_061_guard_page (CVE-2010-2240) failed with Artful kernel

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