** Tags added: id-5a3bd5fa5445fb1d95040a5b -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libseccomp in Ubuntu. https://bugs.launchpad.net/bugs/1682102
Title: libseccomp should support GA and HWE kernels Status in libseccomp package in Ubuntu: Invalid Status in libseccomp source package in Xenial: Fix Released Bug description: [Impact] out of date libseccomp w.r.t. custom and hwe kernels provides sub-par userspace protection, which is otherwise available on the running kernel and hardware combination. This results in subpar security of systems running new architectures (s390x & ppc64el) and newer hwe/custom kernels. * Version 2.3.1 - April 20, 2016 - Fixed a problem with 32-bit x86 socket syscalls on some systems - Fixed problems with ipc syscalls on 32-bit x86 - Fixed problems with socket and ipc syscalls on s390 and s390x * Version 2.3.0 - February 29, 2016 - Added support for the s390 and s390x architectures - Added support for the ppc, ppc64, and ppc64le architectures - Update the internal syscall tables to match the Linux 4.5-rcX releases - Filter generation for both multiplexed and direct socket syscalls on x86 - Support for the musl libc implementation - Additions to the API to enable runtime version checking of the library - Enable the use of seccomp() instead of prctl() on supported systems - Added additional tests to the regression test suite There is no ABI/API break There are no packaging changes, apart from dropping patches included in this upstream release and updating new symbols. Doing wholesome update is safer and carries less risk, than individually cherrypicking effectively all of the above. This is a backport to an LTS release under the banner of safe introduction of new features and new hardware support. It is expected that container technologies will take advantage of the newly available libseccomp. This may need to be uploaded as a security update. Currently, s390x support in xenial libssecomp is incomplete. And there are v4.5+ syscall tables missing as used by hwe kernels and some custom kernels. [Testcase] Validate that all main contianer technologies are operational and do not regress, e.g.: - lxc - lxd - docker - snapd [Regression Potential] Userspace components may detect at runtime newly available libseccomp, and thus restrict user-space processes more than previously done. This may lead to a change of restrictions applied on the user sapce processes, and result in previously unexpected denials / errors returned. [Proposed Update available in bileto PPA] https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/2981 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libseccomp/+bug/1682102/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
