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[Bug 2072460] [NEW] KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS from ubuntu_qrt_kernel_security failed on Noble GCP N2D instances

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Public bug reported:

Issue found on Google N2D instances since sru-20240429 with Noble
6.8.0-32.32

KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS failed with:
 Running 'python3 ./test-kernel-security.py -v KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS'
 Running test: './test-kernel-security.py' distro: 'Ubuntu 24.04' kernel: '6.8.0-36.36.1 (Ubuntu 6.8.0-36.36.1-lowlatency 6.8.4)' arch: 'amd64' init: 'systemd' uid: 0/0 SUDO_USER: 'ubuntu')
 test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
 syscall(666666) returns ENOSYS (LP: #339743) ... FAIL

 ======================================================================
 FAIL: test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
 syscall(666666) returns ENOSYS (LP: #339743)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/./test-kernel-security.py", line 3036, in test_10_bad_syscall_returns_ENOSYS
     self.assertShellExitEquals(expected, self._unpriv_cmd(["./bad-syscall"]))
   File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py", line 1331, in assertShellExitEquals
     self.assertEqual(expected, rc, msg + result + report)
 AssertionError: 0 != -11 : Got exit code -11, expected 0
 Command: 'sudo', '-u', 'ubuntu', './bad-syscall'
 Output:

 ----------------------------------------------------------------------
 Ran 1 test in 0.187s

 FAILED (failures=1)

And this failure will trigger:
2024-07-08T03:47:09.719619+00:00 n-l-gen-6-8-n2dstd2-u-qrt-krn-security kernel: traps: bad-syscall[5430] general protection fault ip:5e0f965b80aa sp:7ffdf3cf71d0 error:402 in bad-syscall[5e0f965b8000+1000]

Which leads to the sut-scan failure as the "kernel: traps:" pattern was
found.

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New


** Tags: 6.8 gcp noble sru-20240429 ubuntu-qrt-kernel-security

** Description changed:

  Issue found on Google N2D instances since sru-20240429
  
  KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS failed with:
-  Running 'python3 ./test-kernel-security.py -v KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS'
-  Running test: './test-kernel-security.py' distro: 'Ubuntu 24.04' kernel: '6.8.0-36.36.1 (Ubuntu 6.8.0-36.36.1-lowlatency 6.8.4)' arch: 'amd64' init: 'systemd' uid: 0/0 SUDO_USER: 'ubuntu')
-  test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
-  syscall(666666) returns ENOSYS (LP: #339743) ... FAIL
-  
-  ======================================================================
-  FAIL: test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
-  syscall(666666) returns ENOSYS (LP: #339743)
-  ----------------------------------------------------------------------
-  Traceback (most recent call last):
-    File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/./test-kernel-security.py", line 3036, in test_10_bad_syscall_returns_ENOSYS
-      self.assertShellExitEquals(expected, self._unpriv_cmd(["./bad-syscall"]))
-    File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py", line 1331, in assertShellExitEquals
-      self.assertEqual(expected, rc, msg + result + report)
-  AssertionError: 0 != -11 : Got exit code -11, expected 0    
-  Command: 'sudo', '-u', 'ubuntu', './bad-syscall'
-  Output:
-  
-  
-  ----------------------------------------------------------------------
-  Ran 1 test in 0.187s
-  
-  FAILED (failures=1)
+  Running 'python3 ./test-kernel-security.py -v KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS'
+  Running test: './test-kernel-security.py' distro: 'Ubuntu 24.04' kernel: '6.8.0-36.36.1 (Ubuntu 6.8.0-36.36.1-lowlatency 6.8.4)' arch: 'amd64' init: 'systemd' uid: 0/0 SUDO_USER: 'ubuntu')
+  test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
+  syscall(666666) returns ENOSYS (LP: #339743) ... FAIL
+ 
+  ======================================================================
+  FAIL: test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
+  syscall(666666) returns ENOSYS (LP: #339743)
+  ----------------------------------------------------------------------
+  Traceback (most recent call last):
+    File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/./test-kernel-security.py", line 3036, in test_10_bad_syscall_returns_ENOSYS
+      self.assertShellExitEquals(expected, self._unpriv_cmd(["./bad-syscall"]))
+    File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py", line 1331, in assertShellExitEquals
+      self.assertEqual(expected, rc, msg + result + report)
+  AssertionError: 0 != -11 : Got exit code -11, expected 0
+  Command: 'sudo', '-u', 'ubuntu', './bad-syscall'
+  Output:
+ 
+  ----------------------------------------------------------------------
+  Ran 1 test in 0.187s
+ 
+  FAILED (failures=1)
+ 
+ And this failure will trigger:
+ 2024-07-08T03:47:09.719619+00:00 n-l-gen-6-8-n2dstd2-u-qrt-krn-security kernel: traps: bad-syscall[5430] general protection fault ip:5e0f965b80aa sp:7ffdf3cf71d0 error:402 in bad-syscall[5e0f965b8000+1000]
+ 
+ Which leads to the sut-scan failure as the "kernel: traps:" pattern was
+ found.

** Description changed:

- Issue found on Google N2D instances since sru-20240429
+ Issue found on Google N2D instances since sru-20240429 with Noble
+ 6.8.0-32.32
  
  KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS failed with:
   Running 'python3 ./test-kernel-security.py -v KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS'
   Running test: './test-kernel-security.py' distro: 'Ubuntu 24.04' kernel: '6.8.0-36.36.1 (Ubuntu 6.8.0-36.36.1-lowlatency 6.8.4)' arch: 'amd64' init: 'systemd' uid: 0/0 SUDO_USER: 'ubuntu')
   test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
   syscall(666666) returns ENOSYS (LP: #339743) ... FAIL
  
   ======================================================================
   FAIL: test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
   syscall(666666) returns ENOSYS (LP: #339743)
   ----------------------------------------------------------------------
   Traceback (most recent call last):
     File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/./test-kernel-security.py", line 3036, in test_10_bad_syscall_returns_ENOSYS
       self.assertShellExitEquals(expected, self._unpriv_cmd(["./bad-syscall"]))
     File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py", line 1331, in assertShellExitEquals
       self.assertEqual(expected, rc, msg + result + report)
   AssertionError: 0 != -11 : Got exit code -11, expected 0
   Command: 'sudo', '-u', 'ubuntu', './bad-syscall'
   Output:
  
   ----------------------------------------------------------------------
   Ran 1 test in 0.187s
  
   FAILED (failures=1)
  
  And this failure will trigger:
  2024-07-08T03:47:09.719619+00:00 n-l-gen-6-8-n2dstd2-u-qrt-krn-security kernel: traps: bad-syscall[5430] general protection fault ip:5e0f965b80aa sp:7ffdf3cf71d0 error:402 in bad-syscall[5e0f965b8000+1000]
  
  Which leads to the sut-scan failure as the "kernel: traps:" pattern was
  found.

-- 
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https://bugs.launchpad.net/bugs/2072460

Title:
  KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS from
  ubuntu_qrt_kernel_security failed on Noble GCP N2D instances

Status in ubuntu-kernel-tests:
  New

Bug description:
  Issue found on Google N2D instances since sru-20240429 with Noble
  6.8.0-32.32

  KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS failed with:
   Running 'python3 ./test-kernel-security.py -v KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS'
   Running test: './test-kernel-security.py' distro: 'Ubuntu 24.04' kernel: '6.8.0-36.36.1 (Ubuntu 6.8.0-36.36.1-lowlatency 6.8.4)' arch: 'amd64' init: 'systemd' uid: 0/0 SUDO_USER: 'ubuntu')
   test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
   syscall(666666) returns ENOSYS (LP: #339743) ... FAIL

   ======================================================================
   FAIL: test_10_bad_syscall_returns_ENOSYS (__main__.KernelNonSecurityTest.test_10_bad_syscall_returns_ENOSYS)
   syscall(666666) returns ENOSYS (LP: #339743)
   ----------------------------------------------------------------------
   Traceback (most recent call last):
     File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/./test-kernel-security.py", line 3036, in test_10_bad_syscall_returns_ENOSYS
       self.assertShellExitEquals(expected, self._unpriv_cmd(["./bad-syscall"]))
     File "/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_security/src/qa-regression-testing/scripts/testlib.py", line 1331, in assertShellExitEquals
       self.assertEqual(expected, rc, msg + result + report)
   AssertionError: 0 != -11 : Got exit code -11, expected 0
   Command: 'sudo', '-u', 'ubuntu', './bad-syscall'
   Output:

   ----------------------------------------------------------------------
   Ran 1 test in 0.187s

   FAILED (failures=1)

  And this failure will trigger:
  2024-07-08T03:47:09.719619+00:00 n-l-gen-6-8-n2dstd2-u-qrt-krn-security kernel: traps: bad-syscall[5430] general protection fault ip:5e0f965b80aa sp:7ffdf3cf71d0 error:402 in bad-syscall[5e0f965b8000+1000]

  Which leads to the sut-scan failure as the "kernel: traps:" pattern
  was found.

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