Public bug reported: [Impact]
* The exec_stack.sh regression test fails due to a behavior change in 4.8 kernels from this patch: commit 9f834ec18defc369d73ccf9e87a2790bfa05bf46 Author: Linus Torvalds <[email protected]> Date: Mon Aug 22 16:41:46 2016 -0700 binfmt_elf: switch to new creds when switching to new mm * Adjusting the regression tests appropriately allows the kernel and security teams to use QRT's test-apparmor.py to test kernel and userspace AppArmor changes with confidence [Test Case] $ apt-get source apparmor $ cd tests/regression/apparmor $ make USE_SYSTEM=1 $ sudo bash exec_stack.sh running exec_stack /tmp/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 608 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 610 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 612 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 613 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 620 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 628 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 634 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 741 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 745 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 747 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 748 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 754 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/testlibRpZj1Y/source/yakkety/apparmor-2.10.95/tests/regression/apparmor/prologue.inc: line 219: 833 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' The previous command should result in no output and return value of 0 once the regression test is properly updated. [Regression Potential] * This is an extremely low risk change since it only touches regression testing code that is not user-facing. ** Affects: apparmor (Ubuntu) Importance: Low Assignee: Tyler Hicks (tyhicks) Status: In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1628745 Title: Change in kernel exec transition behavior causes regression tests to fail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1628745/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
