exec_stack from ubuntu_qrt_apparmor failed with T-4.4

[Po-Hsu Lin]

This issue cannot be reproduce on Xenial 4.4, probably related to Trusty.

It looks like this is not a regression, at least it can be reproduced with 4.4.0-154-generic #181~14.04.1

Failure could be found across all architectures:

 running exec_stack
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11431 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - file)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11433 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - otherfile)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11435 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - thirdfile)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11436 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - sharedfile)' was expected to 'pass'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11442 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - okcon)' was expected to 'pass'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11448 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - bad label)' was expected to 'fail'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11454 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (2 stacked - bad mode)' was expected to 'fail'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11549 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - file)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11551 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - otherfile)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11553 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - thirdfile)' was expected to 'fail'. Reason for failure expect errno 13 != 139
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11554 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - sharedfile)' was expected to 'pass'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11560 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - okcon)' was expected to 'pass'. Reason for failure 'killed by signal 11'
 /tmp/testlibie9Zaq/source/trusty/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 11652 Segmentation fault $testexec "$@" > $outfile 2>&1
 Error: transition failed. Test 'EXEC_STACK (3 stacked - old AA WARN)' was expected to 'pass'. Reason for failure 'killed by signal 11'

Complete test report could be found here:
https://pastebin.ubuntu.com/p/YH5cYVkC5p/

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1836873

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Steve Beattie (sbeattie)]

This was the result of the fallout from the fix for CVE-2019-11190/LP: #1830984 and has been addressed in qart with commit https://git.launchpad.net/qa-regression-testing/commit/?id=e8651bc9c0ab7293f62bedf620abb9c4187841c0

Thanks!

[Po-Hsu Lin (cypressyew)]

Confirmed passed with 4.4.0-161.189~14.04.1
Thanks