[Touch-packages] [Bug 1756506] Re: snd_hda_intel module rejected by new kernel with retpoline
Please consider my remark above a workaround. It will load your kernel module, but it also exposes a kernel vulnerability to your system by allowing a non repoline compiled module to load. See https://patchwork.kernel.org/patch/10161531/ for more information. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1756506 Title: snd_hda_intel module rejected by new kernel with retpoline Status in alsa-driver package in Ubuntu: Confirmed Status in virtualbox package in Ubuntu: Confirmed Bug description: After a routine software update (which updated the kernel) alsa recognises no sound card although lspci reports an audio device: Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04). $ uname -a Linux 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ aplay -l aplay: device_list:268: no soundcards found... $ dmesg | grep snd [4.794976] snd_hda_core: version magic '3.13.0-143-generic SMP mod_unload modversions ' should be '3.13.0-143-generic SMP mod_unload modversions retpoline ' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1756506/+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
[Touch-packages] [Bug 1756506] Re: snd_hda_intel module rejected by new kernel with retpoline
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: virtualbox (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1756506 Title: snd_hda_intel module rejected by new kernel with retpoline Status in alsa-driver package in Ubuntu: Confirmed Status in virtualbox package in Ubuntu: Confirmed Bug description: After a routine software update (which updated the kernel) alsa recognises no sound card although lspci reports an audio device: Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04). $ uname -a Linux 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ aplay -l aplay: device_list:268: no soundcards found... $ dmesg | grep snd [4.794976] snd_hda_core: version magic '3.13.0-143-generic SMP mod_unload modversions ' should be '3.13.0-143-generic SMP mod_unload modversions retpoline ' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1756506/+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
[Touch-packages] [Bug 1756506] Re: snd_hda_intel module rejected by new kernel with retpoline
** Also affects: virtualbox (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1756506 Title: snd_hda_intel module rejected by new kernel with retpoline Status in alsa-driver package in Ubuntu: Confirmed Status in virtualbox package in Ubuntu: Confirmed Bug description: After a routine software update (which updated the kernel) alsa recognises no sound card although lspci reports an audio device: Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04). $ uname -a Linux 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ aplay -l aplay: device_list:268: no soundcards found... $ dmesg | grep snd [4.794976] snd_hda_core: version magic '3.13.0-143-generic SMP mod_unload modversions ' should be '3.13.0-143-generic SMP mod_unload modversions retpoline ' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1756506/+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
[Touch-packages] [Bug 1756506] Re: snd_hda_intel module rejected by new kernel with retpoline
Similar issue observed with the drivers supplied with virtualbox guest additions in Ubuntu 14.04 after a regular upgrade (running the same kernel as mentioned in previous post). $ gmesg | grep vbox [ 32.576197] vboxguest: version magic '3.13.0-143-generic SMP mod_unload modversions ' should be '3.13.0-143-generic SMP mod_unload modversions retpoline ' As it turns out the virtualbox drivers are not supplied as binary .ko files in Ubuntu, their compiled during the installation using 'dkms', which uses the virtualbox driver source from the guest additions package and the kernel headers. During this step the drivers don't get the correct vermagic string. $ modinfo /lib/modules/3.13.0-143-generic/updates/dkms/vboxsf.ko filename: /lib/modules/3.13.0-143-generic/updates/dkms/vboxsf.ko version:4.3.36_Ubuntu (interface 0x00010004) license:GPL author: Oracle Corporation description:Oracle VM VirtualBox VFS Module for Host File System Access srcversion: D5BC8E0A67B7E89277BCEA9 depends:vboxguest vermagic: 3.13.0-143-generic SMP mod_unload modversions parm: follow_symlinks:Let host resolve symlinks rather than showing them (int) During compilation the /usr/src/linux- headers-3.13.0-142-generic/include/linux/vermagic.h file is used to generate the vermagic string, which includes /usr/src/linux- headers-3.13.0-143-generic/include/generated/utsrelease.h. After adding a RETPOLINE define to this header file and recompiling the drivers the problems looks solved. The steps are described below. (as root) $ echo "#define RETPOLINE 1" >> /usr/src/linux-headers-3.13.0-143-generic/include/generated/utsrelease.h $ dkms remove virtualbox-guest/4.3.36 -k 3.13.0-144-generic $ dkms install virtualbox-guest/4.3.36 -k 3.13.0-144-generic It looks like the linux-headers-3.13.0-143-generic package needs an update to fix the utsrelease.h file (which seems generated too?). This problem most likely has impact on all drivers which are created with the 'dkms' tool. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1756506 Title: snd_hda_intel module rejected by new kernel with retpoline Status in alsa-driver package in Ubuntu: Confirmed Bug description: After a routine software update (which updated the kernel) alsa recognises no sound card although lspci reports an audio device: Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04). $ uname -a Linux 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ aplay -l aplay: device_list:268: no soundcards found... $ dmesg | grep snd [4.794976] snd_hda_core: version magic '3.13.0-143-generic SMP mod_unload modversions ' should be '3.13.0-143-generic SMP mod_unload modversions retpoline ' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1756506/+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
