CVE-2022-1852: Null Pointer Dereference
First published: Tue May 24 2022(Updated: )
A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-425.3.1.rt7.213.el8 | 0:4.18.0-425.3.1.rt7.213.el8 |
| redhat/kernel | <0:4.18.0-425.3.1.el8 | 0:4.18.0-425.3.1.el8 |
| redhat/kernel | <0:5.14.0-162.6.1.el9_1 | 0:5.14.0-162.6.1.el9_1 |
| redhat/kernel-rt | <0:5.14.0-162.6.1.rt21.168.el9_1 | 0:5.14.0-162.6.1.rt21.168.el9_1 |
| Linux Linux kernel | <5.19 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| redhat/kernel | <5.19 | 5.19 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 | |
| ubuntu/linux | <5.15.0-47.51 | 5.15.0-47.51 |
| ubuntu/linux | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws | <5.15.0-1019.23 | 5.15.0-1019.23 |
| ubuntu/linux-aws | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.0 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.15 | <5.15.0-1019.23~20.04.1 | 5.15.0-1019.23~20.04.1 |
| ubuntu/linux-aws-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-5.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-fips | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-aws-hwe | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure | <5.15.0-1019.24 | 5.15.0-1019.24 |
| ubuntu/linux-azure | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-4.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-5.15 | <5.15.0-1019.24~20.04.1 | 5.15.0-1019.24~20.04.1 |
| ubuntu/linux-azure-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-edge | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-fde | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-fde-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-azure-fips | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-bluefield | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-dell300x | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-fips | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp | <5.15.0-1017.23 | 5.15.0-1017.23 |
| ubuntu/linux-gcp | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-4.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-5.15 | <5.15.0-1017.23~20.04.2 | 5.15.0-1017.23~20.04.2 |
| ubuntu/linux-gcp-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-5.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gcp-fips | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke | <5.15.0-1015.18 | 5.15.0-1015.18 |
| ubuntu/linux-gke | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke-4.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke-5.0 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke-5.15 | <5.15.0-1015.18~20.04.1 | 5.15.0-1015.18~20.04.1 |
| ubuntu/linux-gke-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gke-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gkeop | <5.15.0-1002.4 | 5.15.0-1002.4 |
| ubuntu/linux-gkeop | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gkeop-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-gkeop-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-5.15 | <5.15.0-48.54~20.04.1 | 5.15.0-48.54~20.04.1 |
| ubuntu/linux-hwe-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-5.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-hwe-edge | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-ibm | <5.15.0-1013.15 | 5.15.0-1013.15 |
| ubuntu/linux-ibm | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-ibm-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-ibm-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-intel | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-intel-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-intel-iotg | <5.15.0-1015.20 | 5.15.0-1015.20 |
| ubuntu/linux-intel-iotg | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1015.20~20.04.2 | 5.15.0-1015.20~20.04.2 |
| ubuntu/linux-intel-iotg-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-iot | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-kvm | <5.15.0-1017.21 | 5.15.0-1017.21 |
| ubuntu/linux-kvm | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-laptop | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-lowlatency | <5.15.0-47.53 | 5.15.0-47.53 |
| ubuntu/linux-lowlatency | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-48.54~20.04.1 | 5.15.0-48.54~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-lowlatency-hwe-5.19 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-lowlatency-hwe-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-lts-xenial | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-nvidia | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-nvidia-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-nvidia-6.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-nvidia-lowlatency | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-5.10 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-5.14 | <5.14.0-1044.49 | 5.14.0-1044.49 |
| ubuntu/linux-oem-5.17 | <5.17.0-1013.14 | 5.17.0-1013.14 |
| ubuntu/linux-oem-5.17 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-5.6 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-6.0 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-6.1 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-6.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oem-osp1 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle | <5.15.0-1017.22 | 5.15.0-1017.22 |
| ubuntu/linux-oracle | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-5.0 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-5.13 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-5.15 | <5.15.0-1017.22~20.04.1 | 5.15.0-1017.22~20.04.1 |
| ubuntu/linux-oracle-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-oracle-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-raspi | <5.15.0-1014.16 | 5.15.0-1014.16 |
| ubuntu/linux-raspi | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-raspi-5.4 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-raspi2 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-raspi2-5.3 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-riscv | <5.15.0-1018.21 | 5.15.0-1018.21 |
| ubuntu/linux-riscv | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-riscv-5.11 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-riscv-5.15 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-riscv-5.8 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-riscv-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-snapdragon | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-starfive | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-starfive-6.5 | <5.19~<5.15.45 | 5.19~ 5.15.45 |
| ubuntu/linux-xilinx-zynqmp | <5.19~<5.15.45 | 5.19~ 5.15.45 |
Remedy
This flaw can be mitigated by preventing the affected KVM module from loading during the boot time, and ensuring the module is added to the blacklist file. ~~~ Refer: How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-1852 https://nvd.nist.gov/vuln/detail/CVE-2022-1852 https://github.com/torvalds/linux/commit/fee060cd52d69c114b62d1a2948ea9648b5131f9
- https://bugzilla.redhat.com/show_bug.cgi?id=2089815
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/security/cve/cve-2022-1852
- https://github.com/torvalds/linux/commit/fee060cd52d69c114b62d1a2948ea9648b5131f9
- https://launchpad.net/bugs/cve/CVE-2022-1852
- https://git.kernel.org/linus/fee060cd52d69c114b62d1a2948ea9648b5131f9
- https://ubuntu.com/security/notices/USN-5529-1
- https://ubuntu.com/security/notices/USN-5594-1
- https://ubuntu.com/security/notices/USN-5599-1
- https://ubuntu.com/security/notices/USN-5602-1
- https://ubuntu.com/security/notices/USN-5616-1
- https://ubuntu.com/security/notices/USN-5623-1
- https://www.cve.org/CVERecord?id=CVE-2022-1852
- https://nvd.nist.gov/vuln/detail/CVE-2022-1852
- https://security-tracker.debian.org/tracker/CVE-2022-1852
- https://git.kernel.org/linus/4aa2691dcbd38ce1c461188799d863398dd2865d
- https://ubuntu.com/security/CVE-2022-1852
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2092232
- https://access.redhat.com/errata/RHSA-2024:1877
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/severity
- agent/remedy
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/description
- agent/weakness
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-1852
- agent/references
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- vendor/redhat
- canonical/redhat enterprise linux
- version/redhat enterprise linux/8.0
- version/redhat enterprise linux/9.0
- package-manager/debian
- package-manager/ubuntu