Description
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | arm-trusted-firmware | 2.12.16+dfsg-1 | — |
| Debian 14 | linux | 5.16.14-1 | — |
| Debian 13 | arm-trusted-firmware | No fix yet | — |
| Debian 13 | linux | 5.16.14-1 | — |
| Debian 12 | arm-trusted-firmware | No fix yet | — |
| Debian 12 | linux | 5.16.14-1 | — |
| Debian 10 | linux | 4.19.249-2 | DSA-5173-1 |
| Debian 9 | linux | 4.9.320-2 | DLA-3065-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-117.132 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1078.84 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-aws-5.13 +1 | 5.13.0-1017.19~20.04.1 | USN-5317-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1083.87 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-azure-fde | 5.4.0-1072.75+cvm1.1 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1040.44 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1067.71 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | 5.13.0-1019.23~20.04.1 | USN-5317-1 |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1065.68 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1036.37 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | 5.13.0-35.40~20.04.1 | USN-5317-1 |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1026.29 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-intel-5.13 | 5.13.0-1010.10 | USN-5362-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1008.11~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1004.6 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1068.72 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1033.36 | USN-5317-1 |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1076.83 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | 5.13.0-1021.26~20.04.1 | USN-5317-1 |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1065.75 | USN-5318-1 |
| Ubuntu 20.04 LTS | linux-riscv +15 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-184.194 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1133.143 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1078.84~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1142.156 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1083.87~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1047.52 | — |
| Ubuntu 18.04 LTS | linux-gcp +11 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1067.71~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1065.68~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1036.37~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-117.132~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1028.32~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1119.123 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1098.108 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1076.83~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1065.75~18.04.1 | USN-5318-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1114.122 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1132.142 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips +1 | 5.4.0-1078.84+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1083.87+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1054.61 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2072.76 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2053.58 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1090.100 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2037.41 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1133.143~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1142.156~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-184.194~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1098.108~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1142.156~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | perf +26 | 4.18.0-425.3.1.el8 | RHSA-2022:7683 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | perf +2 | 4.18.0-372.93.1.el8_6 | RHSA-2024:0930 |
| RHEL 8.6 EUS | perf +26 | 4.18.0-372.93.1.el8_6 | RHSA-2024:0930 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | perf +24 | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-425.3.1.el8 | RLSA-2022:7683 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.97.1 | SUSE-SU-2022:1651-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.116.1 | SUSE-SU-2022:1196-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.97.1 | SUSE-SU-2022:1651-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.116.1 | SUSE-SU-2022:1196-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.116.1 | SUSE-SU-2022:1196-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_30 | 1-8.3.1 | SUSE-SU-2022:1196-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.12 | xen | 4.13.4-r3 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.10-15.42 | 1.0-0.amzn2023 | ALAS2023-2023-070 |
| Amazon Linux 2023 | perf +12 | 6.1.10-15.42.amzn2023 | ALAS2023-2023-070 |
| Amazon Linux 2 | kernel-livepatch-4.14.268-205.500 | 1.0-0.amzn2 | ALAS2-2022-1761 |
| Amazon Linux 2 | perf +8 | 4.14.268-205.500.amzn2 | ALAS2-2022-1761 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-425.3.1.el8 | ELSA-2022-7683 |
| Oracle Linux 7 | kernel-uek +4 | 5.4.17-2136.305.5.3.el8uek | ELSA-2022-9273, ELSA-2022-9244 |
| Oracle Linux 7 | kernel-uek-container +1 | 5.4.17-2136.305.5.3.el8 | ELSA-2022-9274, ELSA-2022-9245 |
| Oracle Linux 7 | perf +3 | 5.4.17-2136.305.5.3.el7uek | ELSA-2022-9273, ELSA-2022-9244 |
Advisories 21
- ALSA-2022:7683 Moderate: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:7683 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0930 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- USN-5362-1 linux-intel-5.13 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5317-1 linux, linux-aws, linux-aws-5.13, linux-azure, linux-azure-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oem-5.14, linux-oracle, linux-oracle-5.13, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-5318-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- DSA-5173-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3065-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:7683 Moderate: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:1196-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:1651-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2022-1761 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 2, 2025
- ALAS2023-2023-070 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 10, 2024
- WID-SEC-2022-0237 Xen: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Feb 20, 2024
- WID-SEC-2022-2234 Android Patchday Dezember 2022 BSI CERT-Bund (WID) · Apr 10, 2023
- WID-SEC-2023-0018 Android Patchday Januar 2023 BSI CERT-Bund (WID) · Jan 3, 2023
- ELSA-2022-7683 Moderate: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 15, 2022
- ELSA-2022-9274 Important: Unbreakable Enterprise kernel-container security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 11, 2022
- ELSA-2022-9273 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 11, 2022
- ELSA-2022-9244 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 23, 2022
- ELSA-2022-9245 Important: Unbreakable Enterprise kernel-container security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 23, 2022
References
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
- https://developer.arm.com/support/arm-security-updates
- [oss-security] 20220318 Xen Security Advisory 398 v2 - Multiple speculative security issues mailing-list
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update mailing-list
- DSA-5173 vendor-advisory