USN-5485-1: Linux kernel vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• linux - Linux kernel
• linux-aws - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-5.13 - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
• linux-azure - Linux kernel for Microsoft Azure Cloud systems
• linux-azure-4.15 - Linux kernel for Microsoft Azure Cloud systems
• linux-azure-5.13 - Linux kernel for Microsoft Azure cloud systems
• linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems
• linux-azure-fde - Linux kernel for Microsoft Azure cloud systems
• linux-dell300x - Linux kernel for Dell 300x platforms
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-5.13 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gke - Linux kernel for Google Container Engine (GKE) systems
• linux-gke-5.4 - Linux kernel for Google Container Engine (GKE) systems
• linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
• linux-gkeop-5.4 - Linux kernel for Google Container Engine (GKE) systems
• linux-hwe - Linux hardware enablement (HWE) kernel
• linux-hwe-5.13 - Linux hardware enablement (HWE) kernel
• linux-hwe-5.4 - Linux hardware enablement (HWE) kernel
• linux-ibm - Linux kernel for IBM cloud systems
• linux-ibm-5.4 - Linux kernel for IBM cloud systems
• linux-intel-5.13 - Linux kernel for Intel IOTG
• linux-intel-iotg - Linux kernel for Intel IoT platforms
• linux-kvm - Linux kernel for cloud environments
• linux-lowlatency - Linux low latency kernel
• linux-oracle - Linux kernel for Oracle Cloud systems
• linux-oracle-5.13 - Linux kernel for Oracle Cloud systems
• linux-oracle-5.4 - Linux kernel for Oracle Cloud systems

Details

It was discovered that some Intel processors did not completely perform
cleanup actions on multi-core shared buffers. A local attacker could
possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform
cleanup actions on microarchitectural fill buffers. A local attacker could
possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform
cleanup during specific special register write operations. A local attacker
could possibly use this to expose sensitive information. (CVE-2022-21166)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04

• linux-image-5.15.0-39-generic-64k - 5.15.0-39.42
• linux-image-intel-iotg - 5.15.0.1010.10
• linux-image-virtual - 5.15.0.39.40
• linux-image-generic - 5.15.0.39.40
• linux-image-aws - 5.15.0.1013.13
• linux-image-5.15.0-39-lowlatency - 5.15.0-39.42
• linux-image-gke-5.15 - 5.15.0.1010.13
• linux-image-5.15.0-1010-gcp - 5.15.0-1010.15
• linux-image-lowlatency-hwe-22.04 - 5.15.0.39.38
• linux-image-generic-hwe-22.04 - 5.15.0.39.40
• linux-image-5.15.0-1012-azure - 5.15.0-1012.15
• linux-image-ibm - 5.15.0.1009.8
• linux-image-5.15.0-1013-aws - 5.15.0-1013.17
• linux-image-5.15.0-39-lowlatency-64k - 5.15.0-39.42
• linux-image-azure - 5.15.0.1012.11
• linux-image-5.15.0-1012-kvm - 5.15.0-1012.14
• linux-image-oem-20.04 - 5.15.0.39.40
• linux-image-gke - 5.15.0.1010.13
• linux-image-5.15.0-39-generic - 5.15.0-39.42
• linux-image-5.15.0-1009-ibm - 5.15.0-1009.11
• linux-image-gcp - 5.15.0.1010.9
• linux-image-5.15.0-1010-gke - 5.15.0-1010.13
• linux-image-generic-lpae - 5.15.0.39.40
• linux-image-5.15.0-39-generic-lpae - 5.15.0-39.42
• linux-image-5.15.0-1011-oracle - 5.15.0-1011.15
• linux-image-5.15.0-1010-intel-iotg - 5.15.0-1010.14
• linux-image-generic-lpae-hwe-22.04 - 5.15.0.39.40
• linux-image-virtual-hwe-22.04 - 5.15.0.39.40
• linux-image-oracle - 5.15.0.1011.9
• linux-image-kvm - 5.15.0.1012.10
• linux-image-lowlatency - 5.15.0.39.38

Ubuntu 21.10

• linux-image-virtual - 5.13.0.51.57
• linux-image-generic - 5.13.0.51.57
• linux-image-aws - 5.13.0.1031.29
• linux-image-5.13.0-1033-gcp - 5.13.0-1033.40
• linux-image-5.13.0-51-generic-lpae - 5.13.0-51.58
• linux-image-5.13.0-1031-aws - 5.13.0-1031.35
• linux-image-5.13.0-51-lowlatency - 5.13.0-51.58
• linux-image-azure - 5.13.0.1031.28
• linux-image-5.13.0-1031-azure - 5.13.0-1031.37
• linux-image-oem-20.04 - 5.13.0.51.57
• linux-image-5.13.0-1036-oracle - 5.13.0-1036.43
• linux-image-gke - 5.13.0.1033.28
• linux-image-gcp - 5.13.0.1033.28
• linux-image-oracle - 5.13.0.1036.33
• linux-image-lowlatency - 5.13.0.51.57
• linux-image-5.13.0-1030-kvm - 5.13.0-1030.33
• linux-image-5.13.0-51-generic - 5.13.0-51.58
• linux-image-kvm - 5.13.0.1030.27
• linux-image-generic-lpae - 5.13.0.51.57

Ubuntu 20.04

• linux-image-5.4.0-1076-gke - 5.4.0-1076.82
• linux-image-gkeop - 5.4.0.1048.49
• linux-image-virtual - 5.4.0.120.121
• linux-image-aws - 5.13.0.1031.35~20.04.25
• linux-image-ibm-lts-20.04 - 5.4.0.1028.25
• linux-image-gkeop-5.4 - 5.4.0.1048.49
• linux-image-azure - 5.13.0.1031.37~20.04.20
• linux-image-oracle-lts-20.04 - 5.4.0.1078.76
• linux-image-gke-5.4 - 5.4.0.1076.84
• linux-image-kvm - 5.4.0.1070.67
• linux-image-5.13.0-1017-intel - 5.13.0-1017.19
• linux-image-lowlatency - 5.4.0.120.121
• linux-image-5.4.0-1028-ibm - 5.4.0-1028.32
• linux-image-5.4.0-1080-aws - 5.4.0-1080.87
• linux-image-5.13.0-1036-oracle - 5.13.0-1036.43~20.04.1
• linux-image-oem-osp1 - 5.4.0.120.121
• linux-image-5.13.0-51-generic-64k - 5.13.0-51.58~20.04.1
• linux-image-5.4.0-1048-gkeop - 5.4.0-1048.51
• linux-image-5.13.0-1031-azure - 5.13.0-1031.37~20.04.1
• linux-image-5.4.0-120-generic - 5.4.0-120.136
• linux-image-gcp - 5.13.0.1033.40~20.04.1
• linux-image-5.4.0-1085-azure-fde - 5.4.0-1085.90+cvm1.1
• linux-image-intel - 5.13.0.1017.15
• linux-image-oem - 5.4.0.120.121
• linux-image-ibm - 5.4.0.1028.25
• linux-image-5.4.0-120-lowlatency - 5.4.0-120.136
• linux-image-5.4.0-1080-gcp - 5.4.0-1080.87
• linux-image-5.13.0-51-generic-lpae - 5.13.0-51.58~20.04.1
• linux-image-azure-lts-20.04 - 5.4.0.1085.82
• linux-image-5.13.0-1033-gcp - 5.13.0-1033.40~20.04.1
• linux-image-azure-fde - 5.4.0.1085.90+cvm1.25
• linux-image-5.13.0-51-lowlatency - 5.13.0-51.58~20.04.1
• linux-image-gke - 5.4.0.1076.84
• linux-image-aws-lts-20.04 - 5.4.0.1080.80
• linux-image-5.4.0-1085-azure - 5.4.0-1085.90
• linux-image-oracle - 5.13.0.1036.43~20.04.1
• linux-image-generic-lpae-hwe-20.04 - 5.13.0.51.58~20.04.31
• linux-image-5.13.0-51-generic - 5.13.0-51.58~20.04.1
• linux-image-5.4.0-1078-oracle - 5.4.0-1078.86
• linux-image-virtual-hwe-20.04 - 5.13.0.51.58~20.04.31
• linux-image-generic - 5.4.0.120.121
• linux-image-lowlatency-hwe-20.04 - 5.13.0.51.58~20.04.31
• linux-image-5.4.0-120-generic-lpae - 5.4.0-120.136
• linux-image-5.13.0-1031-aws - 5.13.0-1031.35~20.04.1
• linux-image-generic-hwe-20.04 - 5.13.0.51.58~20.04.31
• linux-image-generic-lpae - 5.4.0.120.121
• linux-image-gcp-lts-20.04 - 5.4.0.1080.86
• linux-image-5.4.0-1070-kvm - 5.4.0-1070.75

Ubuntu 18.04

• linux-image-5.4.0-1076-gke - 5.4.0-1076.82~18.04.1
• linux-image-snapdragon-hwe-18.04 - 5.4.0.120.136~18.04.100
• linux-image-virtual - 4.15.0.187.173
• linux-image-aws-lts-18.04 - 4.15.0.1136.136
• linux-image-aws - 5.4.0.1080.60
• linux-image-generic-lpae-hwe-18.04 - 5.4.0.120.136~18.04.100
• linux-image-gkeop-5.4 - 5.4.0.1048.51~18.04.45
• linux-image-azure - 5.4.0.1085.62
• linux-image-dell300x - 4.15.0.1048.48
• linux-image-gcp-lts-18.04 - 4.15.0.1130.146
• linux-image-gke-5.4 - 5.4.0.1076.82~18.04.38
• linux-image-kvm - 4.15.0.1122.115
• linux-image-lowlatency - 4.15.0.187.173
• linux-image-4.15.0-1130-gcp - 4.15.0-1130.146
• linux-image-4.15.0-1145-azure - 4.15.0-1145.160
• linux-image-5.4.0-1028-ibm - 5.4.0-1028.32~18.04.1
• linux-image-5.4.0-1080-aws - 5.4.0-1080.87~18.04.1
• linux-image-oem-osp1 - 5.4.0.120.136~18.04.100
• linux-image-5.4.0-1048-gkeop - 5.4.0-1048.51~18.04.1
• linux-image-5.4.0-120-generic - 5.4.0-120.136~18.04.1
• linux-image-gcp - 5.4.0.1080.61
• linux-image-5.4.0-120-lowlatency - 5.4.0-120.136~18.04.1
• linux-image-generic-lpae - 4.15.0.187.173
• linux-image-4.15.0-1122-kvm - 4.15.0-1122.127
• linux-image-generic-hwe-18.04 - 5.4.0.120.136~18.04.100
• linux-image-oem - 5.4.0.120.136~18.04.100
• linux-image-ibm - 5.4.0.1028.42
• linux-image-5.4.0-1080-gcp - 5.4.0-1080.87~18.04.1
• linux-image-virtual-hwe-18.04 - 5.4.0.120.136~18.04.100
• linux-image-5.4.0-1085-azure - 5.4.0-1085.90~18.04.1
• linux-image-azure-lts-18.04 - 4.15.0.1145.115
• linux-image-4.15.0-1048-dell300x - 4.15.0-1048.53
• linux-image-oracle - 5.4.0.1078.86~18.04.55
• linux-image-lowlatency-hwe-18.04 - 5.4.0.120.136~18.04.100
• linux-image-4.15.0-187-lowlatency - 4.15.0-187.198
• linux-image-4.15.0-1136-aws - 4.15.0-1136.147
• linux-image-5.4.0-1078-oracle - 5.4.0-1078.86~18.04.1
• linux-image-generic - 4.15.0.187.173
• linux-image-oracle-lts-18.04 - 4.15.0.1101.108
• linux-image-5.4.0-120-generic-lpae - 5.4.0-120.136~18.04.1
• linux-image-4.15.0-187-generic-lpae - 4.15.0-187.198
• linux-image-4.15.0-187-generic - 4.15.0-187.198
• linux-image-4.15.0-1101-oracle - 4.15.0-1101.112

Ubuntu 16.04

• linux-image-lowlatency-hwe-16.04 - 4.15.0.187.174
  Available with Ubuntu Pro
• linux-image-4.15.0-1130-gcp - 4.15.0-1130.146~16.04.1
  Available with Ubuntu Pro
• linux-image-4.15.0-1145-azure - 4.15.0-1145.160~16.04.1
  Available with Ubuntu Pro
• linux-image-oem - 4.15.0.187.174
  Available with Ubuntu Pro
• linux-image-virtual-hwe-16.04 - 4.15.0.187.174
  Available with Ubuntu Pro
• linux-image-4.15.0-1136-aws-hwe - 4.15.0-1136.147~16.04.1
  Available with Ubuntu Pro
• linux-image-azure - 4.15.0.1145.132
  Available with Ubuntu Pro
• linux-image-gke - 4.15.0.1130.127
  Available with Ubuntu Pro
• linux-image-gcp - 4.15.0.1130.127
  Available with Ubuntu Pro
• linux-image-aws-hwe - 4.15.0.1136.123
  Available with Ubuntu Pro
• linux-image-4.15.0-187-generic - 4.15.0-187.198~16.04.1
  Available with Ubuntu Pro
• linux-image-generic-hwe-16.04 - 4.15.0.187.174
  Available with Ubuntu Pro
• linux-image-4.15.0-1101-oracle - 4.15.0-1101.112~16.04.1
  Available with Ubuntu Pro
• linux-image-oracle - 4.15.0.1101.86
  Available with Ubuntu Pro
• linux-image-4.15.0-187-lowlatency - 4.15.0-187.198~16.04.1
  Available with Ubuntu Pro

Ubuntu 14.04

• linux-image-azure - 4.15.0.1145.114
  Available with Ubuntu Pro
• linux-image-4.15.0-1145-azure - 4.15.0-1145.160~14.04.1
  Available with Ubuntu Pro

Please note that fully mitigating processor vulnerabilities requires
corresponding processor microcode/firmware updates.

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

• CVE-2022-21123
• CVE-2022-21166
• CVE-2022-21125

Related notices

• USN-5484-1: linux-tools-lts-trusty, linux-generic-lts-trusty, linux-image-hwe-virtual-trusty, linux-image-generic-lpae, linux-headers-lowlatency-pae, linux-generic-lpae, linux-cloud-tools-3.13.0-190, linux-headers-generic, linux-cloud-tools-generic, linux-virtual, linux-tools-3.13.0-190, linux-cloud-tools-3.13.0-190-lowlatency, linux-lowlatency, linux-headers-lowlatency, linux-generic-lts-saucy, linux-modules-3.13.0-190-lowlatency, linux-signed-image-generic-lts-quantal, linux-tools-generic-lpae, linux-headers-3.13.0-190, linux-headers-generic-lpae-lts-trusty, linux, linux-generic-lpae-lts-trusty, linux-headers-3.13.0-190-generic-lpae, linux-signed-generic-lts-saucy, linux-headers-generic-lts-saucy, linux-tools-generic-lpae-lts-saucy, linux-cloud-tools-3.13.0-190-generic, linux-image-omap, linux-modules-3.13.0-190-generic, linux-tools-lts-quantal, linux-buildinfo-3.13.0-190-generic, linux-cloud-tools-common, linux-source, linux-image-generic-lpae-lts-trusty, linux-signed-generic-lts-raring-eol-upgrade, linux-headers-highbank, linux-headers-omap, linux-modules-3.13.0-190-generic-lpae, linux-image-generic-lpae-lts-saucy, linux-signed-image-generic-lts-trusty, linux-generic-lpae-lts-saucy, linux-tools-generic-lpae-lts-trusty, linux-doc, linux-generic-lts-quantal-eol-upgrade, linux-signed-generic-lts-quantal, linux-headers-generic-lts-trusty, linux-server, linux-headers-generic-pae, linux-tools-generic-lts-trusty, linux-cloud-tools-lowlatency, linux-modules-extra-3.13.0-190-generic, linux-generic-lts-saucy-eol-upgrade, linux-signed-generic-lts-trusty, linux-headers-server, linux-tools-3.13.0-190-generic-lpae, linux-image-generic-pae, linux-crashdump, linux-image-generic-lts-quantal, linux-tools-3.13.0-190-lowlatency, linux-omap, linux-cloud-tools-virtual, linux-buildinfo-3.13.0-190-generic-lpae, linux-headers-3.13.0-190-lowlatency, linux-image-virtual, linux-headers-generic-lts-raring, linux-image-unsigned-3.13.0-190-lowlatency, linux-generic-lpae-lts-saucy-eol-upgrade, linux-generic-pae, linux-image-3.13.0-190-generic-lpae, linux-buildinfo-3.13.0-190-lowlatency, linux-signed-generic-lts-quantal-eol-upgrade, linux-tools-generic, linux-headers-virtual, linux-highbank, linux-tools-generic-lts-saucy, linux-tools-lowlatency, linux-signed-generic-lts-saucy-eol-upgrade, linux-signed-image-generic, linux-tools-common, linux-image-generic-lts-saucy, linux-image-lowlatency-pae, linux-generic, linux-generic-lts-raring-eol-upgrade, linux-image-highbank, linux-generic-lts-raring, linux-headers-3.13.0-190-generic, linux-image-generic, linux-lowlatency-pae, linux-libc-dev, linux-image-3.13.0-190-generic, linux-image-hwe-generic-trusty, linux-headers-generic-lpae, linux-hwe-virtual-trusty, linux-headers-generic-lpae-lts-saucy, linux-signed-image-generic-lts-saucy, linux-tools-virtual, linux-source-3.13.0, linux-tools-3.13.0-190-generic, linux-headers-generic-lts-quantal, linux-image-generic-lts-raring, linux-image-generic-lts-trusty, linux-tools-lts-raring, linux-image-3.13.0-190-lowlatency, linux-signed-generic-lts-raring, linux-hwe-generic-trusty, linux-signed-image-generic-lts-raring, linux-generic-lts-quantal, linux-tools-lts-saucy, hv-kvp-daemon-init, linux-signed-generic, linux-image-lowlatency, linux-image-unsigned-3.13.0-190-generic, linux-image-extra-virtual, linux-image-server
• USN-5486-1: intel-microcode
• USN-5485-2: linux-headers-oem-20.04c, linux-headers-5.14.0-1044-oem, linux-headers-oem-20.04d, linux-oem-5.14-headers-5.14.0-1044, linux-modules-5.14.0-1044-oem, linux-oem-5.14-tools-host, linux-headers-oem-20.04b, linux-image-unsigned-5.14.0-1044-oem, linux-image-oem-20.04d, linux-modules-iwlwifi-oem-20.04, linux-oem-20.04d, linux-oem-5.14, linux-tools-oem-20.04b, linux-modules-iwlwifi-5.14.0-1044-oem, linux-modules-iwlwifi-oem-20.04d, linux-tools-5.14.0-1044-oem, linux-image-5.14.0-1044-oem, linux-image-oem-20.04c, linux-buildinfo-5.14.0-1044-oem, linux-oem-5.14-tools-5.14.0-1044, linux-headers-oem-20.04, linux-tools-oem-20.04c, linux-oem-20.04c, linux-tools-oem-20.04, linux-image-oem-20.04, linux-image-oem-20.04b, linux-oem-20.04b, linux-oem-20.04, linux-tools-oem-20.04d
• USN-5505-1: linux-cloud-tools-4.4.0-1110-kvm, linux-headers-lowlatency-lts-xenial, linux-headers-4.4.0-1110-kvm, linux-tools-4.4.0-1110-kvm, linux-cloud-tools-lowlatency-lts-xenial, linux-image-generic-lts-xenial, linux-generic-lts-xenial, linux-tools-virtual-lts-xenial, linux-lts-xenial-tools-4.4.0-229, linux-modules-4.4.0-1110-kvm, linux-tools-kvm, linux-virtual-lts-xenial, linux-buildinfo-4.4.0-229-lowlatency, linux-buildinfo-4.4.0-229-generic, linux-image-4.4.0-229-generic, linux-kvm-headers-4.4.0-1110, linux-signed-image-lowlatency-lts-xenial, linux-lts-xenial-cloud-tools-4.4.0-229, linux-tools-4.4.0-229-lowlatency, linux-headers-4.4.0-229-lowlatency, linux-image-lowlatency-lts-xenial, linux-headers-virtual-lts-xenial, linux-kvm-tools-4.4.0-1110, linux-tools-lowlatency-lts-xenial, linux-modules-4.4.0-229-generic, linux-headers-kvm, linux-lowlatency-lts-xenial, linux-cloud-tools-4.4.0-229-lowlatency, linux-image-unsigned-4.4.0-229-generic, linux-cloud-tools-generic-lts-xenial, linux-cloud-tools-virtual-lts-xenial, linux-image-virtual-lts-xenial, linux-kvm-cloud-tools-4.4.0-1110, linux-modules-extra-4.4.0-229-generic, linux-signed-image-generic-lts-xenial, linux-modules-4.4.0-229-lowlatency, linux-signed-generic-lts-xenial, linux-signed-lowlatency-lts-xenial, linux-headers-4.4.0-229-generic, linux-headers-generic-lts-xenial, linux-lts-xenial, linux-image-unsigned-4.4.0-229-lowlatency, linux-headers-4.4.0-229, linux-image-4.4.0-1110-kvm, linux-image-4.4.0-229-lowlatency, linux-cloud-tools-4.4.0-229-generic, linux-buildinfo-4.4.0-1110-kvm, linux-image-kvm, linux-tools-4.4.0-229-generic, linux-image-extra-virtual-lts-xenial, linux-kvm, linux-tools-generic-lts-xenial
• USN-5513-1: linux-headers-aws, linux-aws, linux-image-aws, linux-buildinfo-4.4.0-1109-aws, linux-cloud-tools-4.4.0-1109-aws, linux-modules-4.4.0-1109-aws, linux-tools-aws, linux-aws-tools-4.4.0-1109, linux-aws-cloud-tools-4.4.0-1109, linux-tools-4.4.0-1109-aws, linux-aws-headers-4.4.0-1109, linux-image-4.4.0-1109-aws, linux-headers-4.4.0-1109-aws
• USN-5529-1: linux-modules-iwlwifi-5.17.0-1013-oem, linux-image-oem-22.04a, linux-tools-oem-22.04, linux-oem-5.17, linux-oem-5.17-headers-5.17.0-1013, linux-modules-iwlwifi-oem-22.04, linux-oem-5.17-tools-5.17.0-1013, linux-image-oem-22.04, linux-buildinfo-5.17.0-1013-oem, linux-oem-22.04a, linux-tools-5.17.0-1013-oem, linux-image-unsigned-5.17.0-1013-oem, linux-headers-oem-22.04a, linux-modules-5.17.0-1013-oem, linux-tools-oem-22.04a, linux-headers-5.17.0-1013-oem, linux-modules-iwlwifi-oem-22.04a, linux-headers-oem-22.04, linux-oem-22.04, linux-image-5.17.0-1013-oem, linux-oem-5.17-tools-host
• USN-5535-1: intel-microcode