Ubuntu
linux package

multiple kernel oops regarding hung tasks delaying boot

Bug #1989258 reported by Brian Murray on 2022-09-10

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Auto Package Testing	Fix Released	Undecided	Unassigned
	linux (Ubuntu)	Fix Released	Critical	Unassigned

Bug Description

Kinetic amd64 instances in the autopkgtest environment are regularly experiencing a slow boot process due to a hung task timeout which happens multiple times. The oops appears below:

Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.485373] INFO: task systemd-udevd:140 blocked for more than 1208 seconds.
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.487120] Not tainted 5.19.0-15-generic #15-Ubuntu
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.490936] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.492717] task:systemd-udevd state:D stack: 0 pid: 140 ppid: 137 flags:0x00004006
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.494612] Call Trace:
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.495202] <TASK>
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.495727] __schedule+0x23b/0x5c0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.496559] ? sched_clock_cpu+0x12/0xf0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.497482] schedule+0x50/0xc0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.498237] schedule_preempt_disabled+0x15/0x30
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.499306] __mutex_lock.constprop.0+0x4e7/0x760
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.500409] __mutex_lock_slowpath+0x13/0x20
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.501420] mutex_lock+0x36/0x40
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.502211] add_early_randomness+0x1b/0xc0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.503178] hwrng_register+0x13e/0x1c0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.504068] virtrng_scan+0x19/0x30 [virtio_rng]
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.505152] virtio_dev_probe+0x1f9/0x2c0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.506096] really_probe+0x1d1/0x3a0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.506958] __driver_probe_device+0x11b/0x190
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.507993] driver_probe_device+0x24/0xd0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.508955] __driver_attach+0xd8/0x200
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.509859] ? __device_attach_driver+0x120/0x120
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.510952] bus_for_each_dev+0x7c/0xc0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.511846] driver_attach+0x1e/0x30
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.512692] bus_add_driver+0x178/0x220
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.513597] driver_register+0x8f/0xf0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.514474] ? 0xffffffffc0282000
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.515257] register_virtio_driver+0x20/0x40
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.516277] virtio_rng_driver_init+0x15/0x1000 [virtio_rng]
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.517602] do_one_initcall+0x4a/0x210
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.518498] ? kmem_cache_alloc_trace+0x181/0x300
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.519587] ? do_init_module+0x27/0x200
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.520516] do_init_module+0x50/0x200
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.521403] load_module+0xb60/0xcb0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.522243] __do_sys_finit_module+0xbd/0x130
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.523255] ? __do_sys_finit_module+0xbd/0x130
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.524312] __x64_sys_finit_module+0x18/0x20
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.525343] do_syscall_64+0x5b/0x80
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.526183] ? syscall_exit_to_user_mode+0x26/0x50
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.527287] ? __x64_sys_mmap+0x33/0x50
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.528180] ? do_syscall_64+0x67/0x80
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.529064] ? exit_to_user_mode_prepare+0x30/0xa0
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.530182] ? syscall_exit_to_user_mode+0x26/0x50
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.531289] ? __x64_sys_newfstatat+0x1c/0x30
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.532310] ? do_syscall_64+0x67/0x80
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.533185] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.534354] RIP: 0033:0x7f66accbf9fd
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.535191] RSP: 002b:00007ffc83fb0058 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.536912] RAX: ffffffffffffffda RBX: 0000555b12b044d0 RCX: 00007f66accbf9fd
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.538541] RDX: 0000000000000000 RSI: 00007f66ace41458 RDI: 0000000000000005
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.540161] RBP: 00007f66ace41458 R08: 0000000000000000 R09: 0000000000000000
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.541803] R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000020000
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.543431] R13: 0000555b12b03e60 R14: 0000000000000000 R15: 0000555b12afff80
Sep 9 22:31:32 bdmurray-test-systemd kernel: [ 1330.545063] </TASK>

This first occurred with at around 2022-08-24 with at least kernel version 5.19.0-15-generic. But around 2022-09-07 started becoming much more frequent. I've downgraded the version of systemd to 251.2-2ubuntu2 and that did not cause the oops to go away.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: linux-image-5.19.0-15-generic 5.19.0-15.15
ProcVersionSignature: Ubuntu 5.19.0-15.15-generic 5.19.0
Uname: Linux 5.19.0-15-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Sep 9 22:30 seq
crw-rw---- 1 root audio 116, 33 Sep 9 22:30 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.23.0-0ubuntu1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckResult: unknown
Date: Sat Sep 10 15:51:33 2022
Ec2AMI: ami-00009dfb
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: autopkgtest
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Lsusb-t: /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
MachineType: OpenStack Foundation OpenStack Nova
PciMultimedia:

ProcEnviron:
LC_CTYPE=en_US.UTF-8
TERM=screen.xterm-256color
PATH=(custom, no user)
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-15-generic root=UUID=63a35cf8-4d22-4a79-a93d-eb178abc8c07 ro console=ttyS0
RelatedPackageVersions:
linux-restricted-modules-5.19.0-15-generic N/A
linux-backports-modules-5.19.0-15-generic N/A
linux-firmware 20220831.gitd3c92280-0ubuntu1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.release: 0.0
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1+esm1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias: dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1+esm1:bd04/01/2014:br0.0:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.4:cvnQEMU:ct1:cvrpc-i440fx-xenial:sku:
dmi.product.family: Virtual Machine
dmi.product.name: OpenStack Nova
dmi.product.version: 13.1.4
dmi.sys.vendor: OpenStack Foundation

Tags:

CVE References

2022-2978

Revision history for this message

Brian Murray (brian-murray) wrote on 2022-09-10:

CurrentDmesg.txt Edit (263.9 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.6 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (4.6 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (556 bytes, text/plain; charset="utf-8")
Lsusb-v.txt Edit (2.0 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.6 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.5 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (83.6 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (90.4 KiB, text/plain; charset="utf-8")
acpidump.txt Edit (27.3 KiB, text/plain; charset="utf-8")

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2022-09-10: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

Brian Murray (brian-murray) on 2022-09-11

Changed in linux (Ubuntu):
importance:	Undecided → Critical

Revision history for this message

Andrea Righi (arighi) wrote on 2022-09-13:

Hi Brian, we have also experienced this issue during our tests, but it's really hard to reproduce it on our side.

It seems to be a regression in virtio-rng and I've prepared a test kernel, but we still haven't found a way to reproduce it systematically, so I couldn't verify if this test kernel is actually fixing the problem or not.

Are you able to reproduce this issue easily? In that case, it'd be great if you could a quick test with this kernel:
https://kernel.ubuntu.com/~arighi/lp-1989258/

(I've uploaded just the debs here, but if you prefer a ppa let me know)

Thanks in advance!

Revision history for this message

Brian Murray (brian-murray) wrote on 2022-09-15:

I was booting a test system this afternoon and encountered the OOPS regularly so installed the test kernel on the system and rebooted the system multiple times and did not encounter the OOPS once.

Sep 15 00:01:48 bdmurray-test-virtio-rng kernel: [ 0.000000] Linux version 5.19.0-16-generic (ubuntu@ip-10-0-228-190) (x86_64-linux-gnu-gcc (Ubuntu 12.2.0-1ubuntu1) 12.2.0, GNU ld (GNU Binutils for Ubuntu) 2.39) #16+arighi SMP PREEMPT_DYNAMIC Mon Sep 12 15:18:26 UTC 2022 (Ubuntu 5.19.0-16.16+arighi-generic 5.19.7)
Sep 15 00:01:48 bdmurray-test-virtio-rng kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.19.0-16-generic root=UUID=63a35cf8-4d22-4a79-a93d-eb178abc8c07 ro console=ttyS0

ubuntu@bdmurray-test-virtio-rng:~$ grep "Call Trace" /var/log/syslog
Sep 14 23:09:05 bdmurray-test-virtio-rng kernel: [ 242.903669] Call Trace:
Sep 14 23:09:05 bdmurray-test-virtio-rng kernel: [ 363.735838] Call Trace:
Sep 14 23:09:05 bdmurray-test-virtio-rng kernel: [ 484.568986] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 242.911193] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 363.736184] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 484.567867] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 605.399430] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 726.231456] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 847.063944] Call Trace:
Sep 14 23:42:50 bdmurray-test-virtio-rng kernel: [ 967.895641] Call Trace:

ubuntu@bdmurray-test-virtio-rng:~$ lsmod | grep rng
virtio_rng 16384 0
ubuntu@bdmurray-test-virtio-rng:~$ uname -a
Linux bdmurray-test-virtio-rng 5.19.0-16-generic #16+arighi SMP PREEMPT_DYNAMIC Mon Sep 12 15:18:26 UTC 2022 x86_64 x86_64 x86_64 GNU/Linu
x

So I think this is good to go.

Revision history for this message

Brian Murray (brian-murray) wrote on 2022-09-20:

We've worked around this in the autopackage test environment by blacklisting the virtio_rng module, so I'm setting this task to Fix Released.

Changed in auto-package-testing:
status:	New → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2022-10-04:

Download full text (18.6 KiB)

This bug was fixed in the package linux - 5.19.0-18.18

---------------
linux (5.19.0-18.18) kinetic; urgency=medium

* kinetic/linux: 5.19.0-18.18 -proposed tracker (LP: #1990366)

This bug was fixed in the package linux - 5.19.0-18.18

---------------
linux (5.19.0-18.18) kinetic; urgency=medium

* kinetic/linux: 5.19.0-18.18 -proposed tracker (LP: #1990366)

* 5.19.0-17.17: kernel NULL pointer dereference, address: 0000000000000084
    (LP: #1990236)
    - Revert "UBUNTU: SAUCE: apparmor: Fix regression in stacking due to label
      flags"
    - Revert "UBUNTU: [Config] disable SECURITY_APPARMOR_RESTRICT_USERNS"
    - Revert "UBUNTU: SAUCE: Revert "hwrng: virtio - add an internal buffer""
    - Revert "UBUNTU: SAUCE: Revert "hwrng: virtio - don't wait on cleanup""
    - Revert "UBUNTU: SAUCE: Revert "hwrng: virtio - don't waste entropy""
    - Revert "UBUNTU: SAUCE: Revert "hwrng: virtio - always add a pending
      request""
    - Revert "UBUNTU: SAUCE: Revert "hwrng: virtio - unregister device before
      reset""
    - Revert "UBUNTU: SAUCE: Revert "virtio-rng: make device ready before making
      request""
    - Revert "UBUNTU: [Config] update configs after apply new apparmor patch set"
    - Revert "UBUNTU: SAUCE: apparmor: add user namespace creation mediation"
    - Revert "UBUNTU: SAUCE: selinux: Implement userns_create hook"
    - Revert "UBUNTU: SAUCE: bpf-lsm: Make bpf_lsm_userns_create() sleepable"
    - Revert "UBUNTU: SAUCE: security, lsm: Introduce security_create_user_ns()"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: AppArmor: Remove the exclusive
      flag"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Add /proc attr entry for full
      LSM context"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Removed scaffolding function
      lsmcontext_init"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: netlabel: Use a struct lsmblob in
      audit data"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: Audit: Add record for multiple
      object contexts"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: audit: multiple subject lsm values
      for netlabel"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: Audit: Add record for multiple task
      security contexts"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: Audit: Allow multiple records in an
      audit_buffer"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Add a function to report
      multiple LSMs"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: Audit: Create audit_stamp
      structure"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: Audit: Keep multiple LSM data in
      audit_names"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: security_secid_to_secctx
      module selection"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: binder: Pass LSM identifier for
      confirmation"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: NET: Store LSM netlabel data in a
      lsmblob"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: security_secid_to_secctx in
      netlink netfilter"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmcontext in
      security_dentry_init_security"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmcontext in
      security_inode_getsecctx"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmcontext in
      security_secid_to_secctx"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Ensure the correct LSM context
      releaser"
    - Revert "UBUNTU: SAUCE: fixup lsm stacking v37: LSM: Specify which LSM to
      display"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Specify which LSM to display"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_cred_getsecid"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_inode_getsecid"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_current_getsecid"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_ipc_getsecid"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_secid_to_secctx"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_secctx_to_secid"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_kernel_act_as"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Use lsmblob in
      security_audit_rule_match"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: IMA: avoid label collisions with
      stacked LSMs"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: provide lsm name and id slot
      mappings"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Add the lsmblob data
      structure."
    - Revert "UBUNTU: SAUCE: lsm stacking v37: LSM: Infrastructure management of
      the sock security"
    - Revert "UBUNTU: SAUCE: lsm stacking v37: integrity: disassociate
      ima_filter_rule from security_audit_rule"
    - Revert "UBUNTU: SAUCE: apparmor: LSM stacking: switch from SK_CTX() to
      aa_sock()"
    - Revert "UBUNTU: SAUCE: apparmor: Add fine grained mediation of posix
      mqueues"
    - Revert "UBUNTU: SAUCE: apparmor: rename aa_sock() to aa_unix_sk()"
    - Revert "UBUNTU: SAUCE: fix shutdown unix socket owner conditional check"
    - Revert "UBUNTU: SAUCE: apparmor: af_unix mediation"
    - Revert "UBUNTU: SAUCE: apparmor: patch to provide compatibility with v2.x
      net rules"
    - Revert "UBUNTU: SAUCE: apparmor: add/use fns to print hash string hex value"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: fix aa_class_names[] to
      match reserved classes"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: rework profile->rules to
      be a list"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: refactor profile rules
      and attachments"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: verify loaded permission
      bits masks don't overlap"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: cleanup: move perm
      accumulation into perms.h"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: make sure perm indexes
      are accumulated"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: verify permission table
      indexes"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: add the ability for
      policy to specify a permission table"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: make unpack_array return
      a trianary value"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: group dfa policydb
      unpacking"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: make transition table
      unpack generic so it can be reused"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: add user mode flag"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: add mediation class
      information to auditing"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: extend permissions to
      support a label and tag string"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: isolate policy backwards
      compatibility to its own file"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: extend xindex size"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: move dfa perm macros
      into policy_unpack"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: extend policydb
      permission set by making use of the xbits"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: fix apparmor mediating
      locking non-fs unix sockets"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: Fix abi check to include
      v8 abi"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: preparse for state being
      more than just an integer"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: convert policy lookup to
      use accept as an index"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: cleanup shared
      permission struct"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: convert xmatch lookup to
      use accept as an index"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: convert fperm lookup to
      use accept as an index"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: convert xmatch to using
      the new shared policydb struct"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: combine file_rules and
      aa_policydb into a single shared struct"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: compute policydb
      permission on profile load"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: convert xmatch to use
      aa_perms structure"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: rework and cleanup fperm
      computation"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: move fperm computation
      into policy_unpack"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: compute xmatch
      permissions on profile load"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: compute file permissions
      on profile load"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: expose compression level
      limits in sysfs"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: use zstd compression for
      profile data"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: reserve mediation
      classes"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: fix lockdep warning when
      removing a namespace"
    - Revert "UBUNTU: SAUCE: apparmor-next 6.1: apparmor: fix a memleak in
      multi_transaction_new()"
    - Revert "UBUNTU: SAUCE: upstream v6.0: Smack: Provide read control for
      io_uring_cmd"
    - Revert "UBUNTU: SAUCE: upstream v6.0: selinux: implement the
      security_uring_cmd() LSM hook"
    - Revert "UBUNTU: SAUCE: upstream v6.0: lsm,io_uring: add LSM hooks for the
      new uring_cmd file op"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: correct config reference to
      intended one"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: move ptrace mediation to
      more logical task.{h,c}"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: extend policydb permission
      set by making use of the xbits"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: allow label to carry debug
      flags"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix some kernel-doc
      comments"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Mark alloc_unconfined() as
      static"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: disable showing the mode as
      part of a secid to secctx"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Convert secid mapping to
      XArrays instead of IDR"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: add a kernel label to use on
      kernel objects"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: test: Remove some casts
      which are no-longer required"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix some kernel-doc
      comments"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix undefined reference to
      `zlib_deflate_workspacesize'"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix some kernel-doc
      comments"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix some kernel-doc
      comments"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix match_mnt_path_str() and
      match_mnt() kernel-doc comment"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Use struct_size() helper in
      kmalloc()"
    - Revert "UBUNTU: SAUCE: upstream v6.0: security/apparmor: remove redundant
      ret variable"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: resolve uninitialized symbol
      warnings in policy_unpack_test.c"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: don't create raw_sha1
      symlink if sha1 hashing is disabled"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Enable tuning of policy
      paranoid load for embedded systems"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: make export of raw binary
      profile to userspace optional"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Update help description of
      policy hash for introspection"
    - Revert "UBUNTU: SAUCE: upstream v6.0: lsm: Fix kernel-doc"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: Fix kernel-doc"
    - Revert "UBUNTU: SAUCE: upstream v6.0: apparmor: fix absroot causing audited
      secids to begin with ="
    - Revert "Revert "UBUNTU: SAUCE: apparmor: add/use fns to print hash string
      hex value""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: patch to provide compatibility with
      v2.x net rules""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: af_unix mediation""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: fix use after free in
      sk_peer_label""
    - Revert "Revert "UBUNTU SAUCE: apparmor: fix apparmor mediating locking non-
      fs, unix sockets""
    - Revert "Revert "apparmor: fix absroot causing audited secids to begin with
      =""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: disable showing the mode as part of
      a secid to secctx""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: rename aa_sock() to aa_unix_sk()""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: LSM stacking: switch from SK_CTX()
      to aa_sock()""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Infrastructure management of the sock
      security""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Create and manage the lsmblob data
      structure.""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in
      security_audit_rule_match""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in security_kernel_act_as""
    - Revert "Revert "UBUNTU: SAUCE: net: Prepare UDS for security module
      stacking""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in
      security_secctx_to_secid""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in
      security_secid_to_secctx""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in security_ipc_getsecid""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in security_task_getsecid""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in security_inode_getsecid""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in security_cred_getsecid""
    - Revert "Revert "UBUNTU: SAUCE: IMA: Change internal interfaces to use
      lsmblobs""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Specify which LSM to display""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Ensure the correct LSM context
      releaser""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmcontext in
      security_secid_to_secctx""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmcontext in
      security_inode_getsecctx""
    - Revert "Revert "UBUNTU: SAUCE: LSM: security_secid_to_secctx in netlink
      netfilter""
    - Revert "Revert "UBUNTU: SAUCE: NET: Store LSM netlabel data in a lsmblob""
    - Revert "Revert "UBUNTU: SAUCE: Audit: Add new record for multiple process
      LSM attributes""
    - Revert "Revert "UBUNTU: SAUCE: Audit: Fix incorrect static inline function
      declration.""
    - Revert "Revert "UBUNTU: SAUCE: Audit: Add a new record for multiple object
      LSM attributes""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Add /proc attr entry for full LSM
      context""
    - Revert "Revert "UBUNTU: SAUCE: AppArmor: Remove the exclusive flag""
    - Revert "Revert "UBUNTU: SAUCE: Audit: Fix for missing NULL check""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: rename kzfree() to
      kfree_sensitive()""
    - Revert "Revert "UBUNTU: SAUCE: LSM: change ima_read_file() to use lsmblob""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Use lsmblob in smk_netlbl_mls()""
    - Revert "Revert "UBUNTU: SAUCE: apparmor: Fix build error, make sk parameter
      const""
    - Revert "Revert "UBUNTU: SAUCE: LSM: Specify which LSM to display (using
      struct cred as input)""

* [22.04 FEAT] Enhanced Interpretation for PCI Functions on s390x - kernel
    part (LP: #1853306)
    - s390/sclp: detect the zPCI load/store interpretation facility
    - s390/sclp: detect the AISII facility
    - s390/sclp: detect the AENI facility
    - s390/sclp: detect the AISI facility
    - s390/airq: pass more TPI info to airq handlers
    - s390/airq: allow for airq structure that uses an input vector
    - s390/pci: externalize the SIC operation controls and routine
    - s390/pci: stash associated GISA designation
    - s390/pci: stash dtsm and maxstbl
    - vfio/pci: introduce CONFIG_VFIO_PCI_ZDEV_KVM
    - KVM: s390: pci: add basic kvm_zdev structure
    - KVM: s390: pci: do initial setup for AEN interpretation
    - KVM: s390: pci: enable host forwarding of Adapter Event Notifications
    - KVM: s390: mechanism to enable guest zPCI Interpretation
    - KVM: s390: pci: provide routines for enabling/disabling interrupt forwarding
    - KVM: s390: pci: add routines to start/stop interpretive execution
    - vfio-pci/zdev: add open/close device hooks
    - vfio-pci/zdev: add function handle to clp base capability
    - vfio-pci/zdev: different maxstbl for interpreted devices
    - KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices
    - MAINTAINERS: additional files related kvm s390 pci passthrough
    - Documentation: kvm: extend KVM_S390_ZPCI_OP subheading underline
    - KVM: s390: pci: Hook to access KVM lowlevel from VFIO

* [22.10 FEAT] [IO2201] Independent Usage of Secondary Physical Function
    (LP: #1959542)
    - PCI: Clean up pci_scan_slot()
    - PCI: Split out next_ari_fn() from next_fn()
    - PCI: Move jailhouse's isolated function handling to pci_scan_slot()
    - PCI: Extend isolated function probing to s390
    - s390/pci: allow zPCI zbus without a function zero

* AMD ACP 6.2 DMIC support (LP: #1989518)
    - ASoC: amd: add Pink Sardine platform ACP IP register header
    - ASoC: amd: add Pink Sardine ACP PCI driver
    - ASoC: amd: add acp6.2 init/de-init functions
    - ASoC: amd: add platform devices for acp6.2 pdm driver and dmic driver
    - ASoC: amd: add acp6.2 pdm platform driver
    - ASoC: amd: add acp6.2 irq handler
    - ASoC: amd: add acp6.2 pdm driver dma ops
    - ASoC: amd: add acp6.2 pci driver pm ops
    - ASoC: amd: add acp6.2 pdm driver pm ops
    - ASoC: amd: enable Pink Sardine acp6.2 drivers build
    - ASoC: amd: create platform device for acp6.2 machine driver
    - ASoC: amd: add Pink Sardine machine driver using dmic
    - ASoC: amd: enable Pink sardine platform machine driver build.
    - [Config] Enable audio for AMD PinkSardine

* support independent clock and LED GPIOs for Intel IPU6 platforms
    (LP: #1989046)
    - SAUCE: platform/x86: int3472: support independent clock and LED GPIOs

* CVE-2022-2978
    - SAUCE: fs: fix UAF/GPF bug in nilfs_mdt_destroy

* Miscellaneous Ubuntu changes
    - [Config] disable SECURITY_APPARMOR_RESTRICT_USERNS
    - SAUCE: Add mdev_set_iommu_device() kABI.
    - SAUCE: apparmor: Fix regression in stacking due to label flags
    - [Config] update toolchain version

* Miscellaneous upstream changes
    - Revert "drm/i915/opregion: check port number bounds for SWSCI display power
      state"

-- Andrea Righi <andrea.righi@canonical.com>  Wed, 21 Sep 2022 16:28:46 +0200

Changed in linux (Ubuntu):
status:	Confirmed → Fix Released

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Ubuntulinux package

multiple kernel oops regarding hung tasks delaying boot

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