Activity log for bug #1829378

Date Who What changed Old value New value Message
2019-05-16 11:51:18 Jan Kellermann bug added bug
2019-05-16 11:52:39 Jan Kellermann description After upgrading HWE-16.04-kernel from 4.15.0-48 to 4.15.0-50 the kernel crashes while booting as PVH-Guest with Xen 4.12. Kernel 4.15.0-48 and prior did boot without any problems. We have the same problem for Ubuntu 18.04 with Kernel 4.15.0-50. Ubunutu 18.04 with HWE-Kernel 4.18.0-20 boots without problems as PVH-DomU. See also https://lists.xenproject.org/archives/html/xen-users/2019-05/msg00010.html After upgrading HWE-16.04-kernel from 4.15.0-48 to 4.15.0-50 the kernel crashes while booting as PVH-Guest with Xen 4.12 (booting as PV works). Kernel 4.15.0-48 and prior did boot without any problems as PVH. We have the same problem for Ubuntu 18.04 with Kernel 4.15.0-50. Ubunutu 18.04 with HWE-Kernel 4.18.0-20 boots without problems as PVH-DomU. See also https://lists.xenproject.org/archives/html/xen-users/2019-05/msg00010.html
2019-05-16 12:35:46 Launchpad Janitor linux-meta-hwe (Ubuntu): status New Confirmed
2019-05-19 21:50:56 David Kowis bug added subscriber David Kowis
2019-05-21 00:09:46 Terry Rudd bug added subscriber Terry Rudd
2019-05-21 06:44:47 Stefan Bader affects linux-meta-hwe (Ubuntu) linux (Ubuntu)
2019-05-21 06:45:01 Stefan Bader nominated for series Ubuntu Bionic
2019-05-21 06:45:01 Stefan Bader bug task added linux (Ubuntu Bionic)
2019-05-21 06:46:18 Stefan Bader linux (Ubuntu): status Confirmed Incomplete
2019-06-14 08:27:16 Stefan Bader bug added subscriber Stefan Bader
2019-07-08 16:31:35 Jan Kellermann summary Kernel 4.15.0-50 wont boot as Xen-DomU with PVH Kernel 4.15.0-50 or newer wont boot as Xen-DomU with PVH
2019-07-09 11:13:04 Kai-Heng Feng description After upgrading HWE-16.04-kernel from 4.15.0-48 to 4.15.0-50 the kernel crashes while booting as PVH-Guest with Xen 4.12 (booting as PV works). Kernel 4.15.0-48 and prior did boot without any problems as PVH. We have the same problem for Ubuntu 18.04 with Kernel 4.15.0-50. Ubunutu 18.04 with HWE-Kernel 4.18.0-20 boots without problems as PVH-DomU. See also https://lists.xenproject.org/archives/html/xen-users/2019-05/msg00010.html === SRU Justification === [Impact] NULL pointer dereference in acpi_quirk_matches_bios_ids() renders kernel unbootable. [Fix] It's a regression caused by commit abd273f52766 ("UBUNTU: SAUCE: ACPI / bus: Add some Lenovo laptops in list of acpi table term list"). When both bios_vendor and bios_ver are NULL then a NULL string is passed to strncmp() and the issue occurs. VMs may not provides string bios_vendor or bios_ver, so bail out early when either bios_vendor or bios_ver is NULL. [Test] User reported the test kernel with proposed fix solves the issue. [Regression Potenial] Low. It's quite trivial so I don't think it'll regress anything. === Original Bug Report === After upgrading HWE-16.04-kernel from 4.15.0-48 to 4.15.0-50 the kernel crashes while booting as PVH-Guest with Xen 4.12 (booting as PV works). Kernel 4.15.0-48 and prior did boot without any problems as PVH. We have the same problem for Ubuntu 18.04 with Kernel 4.15.0-50. Ubunutu 18.04 with HWE-Kernel 4.18.0-20 boots without problems as PVH-DomU. See also https://lists.xenproject.org/archives/html/xen-users/2019-05/msg00010.html
2019-07-12 06:42:00 Khaled El Mously linux (Ubuntu Bionic): status New Fix Committed
2019-07-25 18:32:16 Ubuntu Kernel Bot tags verification-needed-bionic
2019-07-25 19:40:52 Jan Kellermann tags verification-needed-bionic verification-done-bionic
2019-08-07 08:34:38 Ubuntu Kernel Bot tags verification-done-bionic verification-done-bionic verification-needed-xenial
2019-08-07 14:14:57 Jan Kellermann tags verification-done-bionic verification-needed-xenial verification-done-xenial
2019-08-07 14:16:11 Jan Kellermann tags verification-done-xenial verification-done-bionic verification-done-xenial
2019-08-13 11:27:47 Launchpad Janitor linux (Ubuntu Bionic): status Fix Committed Fix Released
2019-08-13 11:27:47 Launchpad Janitor cve linked 2000-1134
2019-08-13 11:27:47 Launchpad Janitor cve linked 2007-3852
2019-08-13 11:27:47 Launchpad Janitor cve linked 2008-0525
2019-08-13 11:27:47 Launchpad Janitor cve linked 2009-0416
2019-08-13 11:27:47 Launchpad Janitor cve linked 2011-4834
2019-08-13 11:27:47 Launchpad Janitor cve linked 2015-1838
2019-08-13 11:27:47 Launchpad Janitor cve linked 2015-7442
2019-08-13 11:27:47 Launchpad Janitor cve linked 2016-7489
2019-08-13 11:27:47 Launchpad Janitor cve linked 2018-5383
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-10126
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-1125
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-12614
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-12818
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-12819
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-12984
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-13233
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-13272
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-2101
2019-08-13 11:27:47 Launchpad Janitor cve linked 2019-3846
2019-11-14 04:41:02 Po-Hsu Lin linux (Ubuntu Bionic): assignee Kai-Heng Feng (kaihengfeng)
2019-11-14 04:41:04 Po-Hsu Lin linux (Ubuntu): status Incomplete Invalid